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MIT

Burglary prompts campus community safety notice warning burglary — Vassar Street

AI-generated · every claim is source-linked
MAburglarytimely warninghigh confidence
Under Investigation

MIT Police issued a crime alert / timely warning on or about 2019-09-18. Full text is preserved from the official MIT Police Crime Alerts archive.

Alerts
1
Response
—
Killed
0
Injured
0
Institution
Massachusetts Institute of Technology
Private R1 · MA
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~12,000 studentsMIT Police Timely Warnings
Official alert policy
Read when and how MIT says it will use MIT Alert: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

1 message in sequence · 1 verified verbatim

Confirmed wording is transcribed character-for-character from a primary source. Use Verify this quote under each message to open that source in a new tab and compare the text yourself.

INITIAL ALERTEmail
Verified verbatim1903 chars
On September 17, 2019, MIT Police responded to a past burglary at the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston. Residents reported that a bicycle was stolen from the basement bike storage area sometime between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM. There were no signs of forced entry to the doorway of this location. The door may have been unsecured during the time of the burglary. The incident was reported to the MIT Police this evening. There is no suspect description available at this time. While victims of crimes are never to blame for criminal activity, there are some precautions that can be taken. In order to protect yourself and your belongings from theft and/or facilitate the recovery of your stolen property, MIT Police encourage you to follow these tips: · See Something - Say Something: Immediately notify the MIT Police at 617-253-1212 or 100 from any campus phone if you believe a crime is occurring, has occurred, or is about to occur. · Always lock your office and residential doors and windows. Assure that the locks are in good working order. · Lock your office or residential door if you are leaving (even if only for a minute or two). · When entering or exiting an office, make sure the door closes tightly behind you. · Report suspicious people or activity. Report all tailgaters. The MIT Police want to remind the MIT community that we are located in an urban setting and share many of the crime and safety issues that exist in any city. The MIT Police are investigating these crimes and request the assistance from the MIT community. If you wish to leave an anonymous tip please call 617-258-TIPS (8-8477). Issued by Sergeant David J. O'Connor Crime Prevention/Community Policing Unit MIT Police 301 Vassar Street Cambridge, Ma. 02139 617-253-1212
Transcribed from official police.mit.edu crime-alert page structured fields (Incident, Suspect, Summary, Suggestions, Issued by).
Page recovered live from MIT Police Crime Alerts archive.
Message elements

How the first alert is built

To check this alert, Claude Opus 5 (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

On September 17, 2019, MIT Police responded to a past burglary at the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston. Residents reported that a bicycle was stolen from the basement bike storage area sometime between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM. There were no signs of forced entry to the doorway of this location. The door may have been unsecured during the time of the burglary. The incident was reported to the MIT Police this evening. There is no suspect description available at this time. While victims of crimes are never to blame for criminal activity, there are some precautions that can be taken. In order to protect yourself and your belongings from theft and/or facilitate the recovery of your stolen property, MIT Police encourage you to follow these tips: · See Something - Say Something: Immediately notify the MIT Police at 617-253-1212 or 100 from any campus phone if you believe a crime is occurring, has occurred, or is about to occur. · Always lock your office and residential doors and windows. Assure that the locks are in good working order. · Lock your office or residential door if you are leaving (even if only for a minute or two). · When entering or exiting an office, make sure the door closes tightly behind you. · Report suspicious people or activity. Report all tailgaters. The MIT Police want to remind the MIT community that we are located in an urban setting and share many of the crime and safety issues that exist in any city. The MIT Police are investigating these crimes and request the assistance from the MIT community. If you wish to leave an anonymous tip please call 617-258-TIPS (8-8477). Issued by Sergeant David J. O'Connor Crime Prevention/Community Policing Unit MIT Police 301 Vassar Street Cambridge, Ma. 02139 617-253-1212

  • Sourcepresent25/25

    Final assessment

    Present, 25 of 25. "MIT Police responded to a past burglary" names the agency, and the sergeant's signature block with the Vassar Street address closes the notice.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: "MIT Police responded" and the sergeant's signature block identify the issuing authority.
    2. present: MIT Police are named as responders and the notice is signed by a named MIT Police sergeant.
    3. present: MIT Police are identified as responders and as the issuing office in the signature block.
    4. present: Authorship is explicit: MIT Police responded and Sergeant O'Connor of the MIT Police issued the warning.
    5. present: Sergeant David J. O'Connor of the MIT Police signs the warning, and MIT Police are named as responders.
    6. present: MIT Police are named as responders and the notice is signed by a named MIT Police sergeant.
    7. present: "MIT Police" appears throughout and Sergeant O'Connor signs it, so the sender is clear.
    8. present: Attribution to "Sergeant David J. O'Connor, Crime Prevention/Community Policing Unit, MIT Police" names the sender.
    9. present: Signed by Sergeant O'Connor of the MIT Police with a department address and phone number.
    10. present: MIT Police are named as responders and the notice is signed by Sergeant O'Connor of the MIT Police.
    11. present: Attributed to MIT Police, with Sergeant O'Connor's name and station address at the foot.
    12. present: The message is issued by Sergeant David J. O'Connor of the MIT Police, who also responded.
    13. present: "MIT Police responded" and the closing block names Sergeant O'Connor of the MIT Police as issuer.
    14. present: MIT Police are named as the responding agency and the message is signed by a named MIT Police sergeant.
    15. present: Attributed to MIT Police and signed by a named MIT Police sergeant with a department address.
    16. present: "MIT Police responded" and the closing signature block identifies the issuing sergeant and department.
    17. present: "MIT Police responded" and the signature block gives Sergeant O'Connor of the MIT Police as issuer.
    18. present: The message names "MIT Police" as responder and carries a signed MIT Police sergeant block.
    19. present: "MIT Police responded" and the signature block gives the sergeant and the MIT Police address.
    20. present: MIT Police are named as responders and the notice is signed by a named MIT Police sergeant.
    21. present: MIT Police are repeatedly named and the notice carries a sergeant's signature block.
    22. present: MIT Police is named throughout and the notice closes "Issued by Sergeant David J. O'Connor, MIT Police".
    23. present: "MIT Police responded" opens the text and a named sergeant of the MIT Police signs it.
    24. present: The sender is identified as the MIT Police, with a named sergeant and department address at the close.
    25. present: MIT Police are named throughout and the closing signature identifies Sergeant David J. O'Connor, MIT Police.
  • Hazardpresent25/25

    Final assessment

    Present, 25 of 25. It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area", with no signs of forced entry.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    2. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    3. present: Names "a past burglary" in which a bicycle was stolen from a basement bike room.
    4. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    5. present: A "past burglary" is reported in which "a bicycle was stolen from the basement bike storage area".
    6. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    7. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    8. present: It reports "a past burglary" in which "a bicycle was stolen", a specific crime type.
    9. present: It describes "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    10. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    11. present: Names "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    12. present: It describes a "past burglary" in which "a bicycle was stolen from the basement bike storage area".
    13. present: It names "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    14. present: The threat named is "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    15. present: Reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    16. present: The threat named is "a past burglary" in which a bicycle was stolen.
    17. present: The hazard is a property crime, "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    18. present: It describes "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    19. present: It names "a past burglary" in which "a bicycle was stolen" from bike storage.
    20. present: It describes "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    21. present: It concerns "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    22. present: It reports "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    23. present: It reports "a past burglary" in which a bicycle was stolen from a bike storage area.
    24. present: It names "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
    25. present: The threat named is "a past burglary" in which "a bicycle was stolen from the basement bike storage area".
  • Locationpresent25/25

    Final assessment

    Present, 25 of 25. The scene is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston", down to the basement bike storage area.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: The location is the "Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    2. present: The place is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    3. present: Gives "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    4. present: The location is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    5. present: It names "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    6. present: It specifies "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    7. present: The place is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    8. present: Location is stated as "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    9. present: The location is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    10. present: The place is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    11. present: Gives "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    12. present: The site is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    13. present: The site is given as "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    14. present: It gives "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    15. present: Names "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    16. present: It gives "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    17. present: It names "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    18. present: The site is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    19. present: The site is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    20. present: The location is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    21. present: It names "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    22. present: The place is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    23. present: The location is given as "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    24. present: The site given is "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
    25. present: It locates the crime at "the Phi Kappa Sigma fraternity house, which is located at 530 Beacon St. in Boston".
  • Guidancepresent25/25

    Final assessment

    Present, 25 of 25. Readers are directed to lock doors and windows, to "Assure that the locks are in good working order", and to report suspicious people to MIT Police.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. present: It directs readers to lock doors and windows, secure offices when leaving, and notify police about suspicious activity.
    2. present: It tells recipients to lock doors and windows, secure locks, and report suspicious people to MIT Police.
    3. present: Advises locking doors and windows, reporting tailgaters, and notifying police about crimes.
    4. present: Protective steps are directed at readers: lock doors and windows, report suspicious activity, call the police line.
    5. present: Readers are directed to lock doors and windows, secure rooms when leaving, and call MIT Police about suspicious activity.
    6. present: Protective steps are given: lock doors and windows, secure rooms when leaving, report suspicious people.
    7. present: Recipients are told to lock doors, close doors behind them, and notify police of suspicious activity.
    8. present: It advises locking doors and windows and immediately notifying MIT Police about suspected crimes.
    9. present: It urges readers to lock doors and windows and to notify MIT Police about suspicious activity.
    10. present: It advises locking doors and windows, securing offices when stepping away, and reporting tailgaters to police.
    11. present: Advises locking doors and windows and immediately notifying MIT Police about suspected crimes.
    12. present: Community members are told to lock doors and windows, report suspicious activity, and call the police line.
    13. present: It urges readers to lock doors even briefly, watch for tailgaters, and notify MIT Police of crimes.
    14. present: It directs readers to lock doors and windows, secure rooms when leaving, and notify police of suspicious activity.
    15. present: Gives protective instructions including locking doors and windows and notifying police of suspicious activity.
    16. present: The tips direct readers to lock doors and windows and to report suspicious activity to police.
    17. present: It gives protective steps: lock doors and windows, report suspicious people, and notify police at once.
    18. present: It instructs the reader to lock doors and windows and to "Report suspicious people or activity".
    19. present: It directs readers to lock doors, secure offices, and notify MIT Police about suspicious people.
    20. present: Protective tips instruct readers to lock doors, secure windows, and notify MIT Police about suspicious activity.
    21. present: It tells readers to lock doors and windows and to notify MIT Police about suspicious people.
    22. present: It directs readers to lock doors and windows, report tailgaters, and notify police of suspected crimes.
    23. present: It tells the reader to keep doors and windows locked, check the locks, and call the police about crime.
    24. present: It advises locking doors and windows, securing offices when leaving, and notifying MIT Police of crimes.
    25. present: Recipients are told to lock doors and windows, report tailgaters, and call MIT Police about suspected crime.
  • Timepresent25/25

    Final assessment

    Present, 25 of 25. A theft window is given, "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM", plus the report "this evening".

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. present: A window is supplied: "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    2. present: A window is given, "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    3. present: Supplies a window from "September 16, 2019 at 4:00PM" to "September 17, 2019 at 07:45AM".
    4. present: A window is given, "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    5. present: A time window is given: "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    6. present: Dates and times are precise, from "September 16, 2019 at 4:00PM" to "September 17, 2019 at 07:45AM".
    7. present: Dates and hours are supplied, "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    8. present: It fixes the theft "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    9. present: It gives a window "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    10. present: A window "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM" is specified.
    11. present: Brackets the theft between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    12. present: A window is given between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    13. present: Dates and times are explicit: "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    14. present: Dates and times are precise: between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    15. present: Anchors the theft between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    16. present: Specific windows are given, "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    17. present: Dates and clock times bracket the theft, "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    18. present: A window is given between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    19. present: A window is given: between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    20. present: Dates and clock times are given, including "September 16, 2019 at 4:00PM" through "07:45AM".
    21. present: A window is given: between "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    22. present: Dates and hours are given, including "between September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    23. present: A window of "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM" is supplied.
    24. present: Specific dates and times bracket the theft: "September 16, 2019 at 4:00PM and September 17, 2019 at 07:45AM".
    25. present: Dates and hours are given, from "September 16, 2019 at 4:00PM" to "September 17, 2019 at 07:45AM".
  • Impactabsent0/25

    Final assessment

    Absent, 0 of 25 voted present. The loss of a bicycle is recounted after the fact and the door "may have been unsecured", but no danger or severity to people is ever stated.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. absent: No statement of danger or severity appears; the theft is simply described after the fact.
    2. absent: The loss of a bicycle is recounted, but no severity or potential harm to people is conveyed.
    3. absent: No consequence or severity is expressed, only that an unsecured door may have allowed the theft.
    4. absent: No harm or severity is described; only an unsecured door and a missing bicycle are reported.
    5. absent: Nothing in the text says what the hazard could do to readers; no severity or danger language is used.
    6. absent: Nothing in the text says what harm could follow; only a stolen bicycle is described.
    7. absent: No consequence or severity is expressed; the loss of a bicycle is reported without any risk statement.
    8. absent: Nothing states what harm could follow; only a stolen bicycle is described, with no severity language.
    9. absent: No statement of danger or harm appears, only a stolen bicycle and an unsecured door.
    10. absent: The notice describes a bicycle theft without stating any danger or severity to the community.
    11. absent: A stolen bicycle is reported without any stated consequence, risk, or severity.
    12. absent: Nothing conveys danger or consequence beyond the loss of a bicycle.
    13. absent: The notice describes a property loss only, with no statement of danger or potential harm to people.
    14. absent: No consequence or severity is conveyed, only that a bicycle was taken.
    15. absent: No consequence or severity statement appears beyond the plain fact that a bicycle went missing.
    16. absent: Nothing conveys potential harm or severity, only that a bicycle went missing.
    17. absent: No consequence or severity is expressed beyond the loss of one bicycle.
    18. absent: No statement of harm or seriousness appears, only the loss of a bicycle in a past crime.
    19. absent: No statement of danger or severity appears, only the fact of a stolen bicycle.
    20. absent: Only a stolen bicycle is mentioned, with no stated consequence, danger, or severity for readers.
    21. absent: Nothing in the text describes any harm or severity beyond the fact of a stolen bicycle.
    22. absent: No consequence or severity is expressed; a stolen bicycle is reported without any statement of danger.
    23. absent: Nothing states any consequence beyond the missing bicycle, no harm or severity is asserted.
    24. absent: The notice describes a stolen bicycle without stating any harm, risk, or seriousness to community members.
    25. absent: The notice describes a stolen bicycle but never says what danger or severity the community faces.

Coded by Claude Opus 5

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

MIT Police publishes Clery timely warnings and crime alerts at police.mit.edu/crime-alert with full incident narrative, safety guidance, and issuer attribution. This entry is from residual archive recovery for Timely Warning Burglary.
Analysis

Key Findings

Official MIT Police crime-alert page preserves complete timely-warning narrative text.
Outcome
MIT Police investigation status as stated in the official crime alert.
Provenance

Sources

Every claim on this page is meant to be checkable. Open the links below (and the Verify this quote control under each confirmed alert) to read the original university, news, or archive page yourself. Hostnames are shown so you can see where you are going; archived copies survive when live pages move or disappear. See also our methodology.

  1. Official
Cite this case

Campus Alert Archive. "Massachusetts Institute of Technology: Burglary prompts campus community safety notice warning burglary — Vassar Street." Incident of September 18, 2019. Added July 2026; last updated August 2026. https://campusalertarchive.com/case/mit-timely-warning-burglary-0-2019-09-18/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
mitmassachusetts-institute-of-technologytimely-warningburglarycrime-alertUnder Investigation
Added July 2026Updated August 2026Via ingestion