Campus Alert Archive
UMN

Gunfire outside an arena after a high school graduation wounds two; suspect arrested

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MNshootingemergency notificationhigh confidence
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Confirmed Threat

On May 30, 2025, at approximately 8:20 PM CDT, gunfire erupted outside 3M Arena at Mariucci following a Wayzata High School graduation ceremony. Two people were injured: a 49-year-old father shot in the head (fractured skull, survived) and a 19-year-old. Hamza Said, 20, was arrested and charged; police said he was found with a Glock 17 with an automatic conversion 'switch' and extended magazine. A SAFE-U emergency alert was issued.

Alerts
3
Response
—
Killed
0
Injured
2
Institution
University of Minnesota
Public R1 · MN
All UMN cases →
~52,000 studentsSAFE-U
Official alert policy
Read when and how UMN says it will use SAFE-U: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

3 messages in sequence · 3 verified verbatim

INITIAL ALERTMulti-channel
Verified verbatimUMN SAFE-U Emergency (official)139 chars
U of M Twin Cities: Shots fired at Mariucci Arena. Police and EMS are on scene. Stay away from the area until further information is given.
Verbatim from the UMN Public Safety Facebook account, which posts mirrored copies of SAFE-U alerts
Sent shortly after the shooting at approximately 8:20 PM CDT on May 30, 2025, after a Wayzata High School graduation ceremony
Police said the suspect possessed a Glock 17 handgun with an automatic conversion device ('switch') and extended magazine
A 49-year-old father of a graduate was shot in the head but survived with a fractured skull
UPDATESMS+35 min
Verified verbatimUMN SAFE-U Emergency (official)127 chars
U of M Twin Cities: Mariucci event update, UMPD currently has a suspect in custody. Updates and safety tips at z.umn.edu/alerts
Intermediate SAFE-U update confirming suspect in custody before full narrative all-clear
ALL CLEARMulti-channel+1h 54m
Verified verbatimUMN SAFE-U Emergency (official)591 chars
U of M Twin Cities: On May 30, 2025, at approximately 8:20 p.m., a shooting occurred outside 3M Arena at Mariucci following a graduation ceremony for Wayzata High School. The University of Minnesota Police Department responded to the scene, and paramedics transported two victims to the Hennepin County Medical Center. Their condition is unknown at this time. A suspect is in custody, and authorities do not believe there is an ongoing threat to the area. This is an active UMPD investigation with the assistance of the Minneapolis Police Department and the Hennepin County Sheriff’s Office.
Verbatim follow-up text published on the UMN Department of Public Safety SAFE-U archive page for the May 30, 2025 incident
Hamza Said was arrested near Williams Arena, where police said they found a discarded graduation gown and the weapon
Prosecutors noted the recovered gown did not match the Wayzata High School graduation ceremony attire
Message elements

How the first alert is built

To check this alert, Claude (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.

U of M Twin Cities: Shots fired at Mariucci Arena. Police and EMS are on scene. Stay away from the area until further information is given.

  • Sourcepresent25/25

    Final assessment

    All reads agree the sender is identified, opening with "U of M Twin Cities".

    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: It opens with "U of M Twin Cities:", identifying the university as sender.
    2. present: The signature "U of M Twin Cities" identifies the sender.
    3. present: The branded tag "U of M Twin Cities" identifies the university sender.
    4. present: It opens with "U of M Twin Cities", naming the university as sender, and names "Police and EMS".
    5. present: It identifies "U of M Twin Cities" plus "Police and EMS", naming the sender.
    6. present: The message opens with the branded signature "U of M Twin Cities" and references "Police", identifying the sender.
    7. present: Identifies "U of M Twin Cities" and "Police and EMS", the issuing institution and responders.
    8. present: Opens with "U of M Twin Cities" and references "Police and EMS", identifying the sender.
    9. present: Opens with "U of M Twin Cities" and names "Police and EMS", identifying the sender.
    10. present: The message opens with "U of M Twin Cities", identifying the sender, and references "Police and EMS".
    11. present: Opens with "U of M Twin Cities", the university naming itself as sender.
    12. present: Opens with "U of M Twin Cities", naming the university, and references "Police and EMS".
    13. present: The branded signature "U of M Twin Cities" and "Police and EMS" identify the source and authority.
    14. present: Opens with the branded signature "U of M Twin Cities", identifying the sender, and cites "Police".
    15. present: Opens with "U of M Twin Cities" and names "Police and EMS", the university and authorities.
    16. present: Opens with "U of M Twin Cities", identifying the sending institution.
    17. present: Opens with "U of M Twin Cities", identifying the sending university, and names "Police".
    18. present: The message opens with "U of M Twin Cities", identifying the sender, and names "Police and EMS".
    19. present: The message opens with "U of M Twin Cities", identifying the sender, and names "Police".
    20. present: It opens with the branded sender "U of M Twin Cities" and names "Police and EMS".
    21. present: Names "U of M Twin Cities" and "Police and EMS", identifying the sender.
    22. present: It opens with "U of M Twin Cities" naming the institution, and names "Police and EMS".
    23. present: It names "U of M Twin Cities" and "Police and EMS", identifying the source.
    24. present: Opens with the branded signature "U of M Twin Cities" and names "Police and EMS", identifying sender and authority.
    25. present: It opens with "U of M Twin Cities", identifying the sending institution.
  • Hazardpresent25/25

    Final assessment

    Unanimous that a specific threat is named, "Shots fired".

    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 names "Shots fired", a specific threat.
    2. present: It names "Shots fired", a specific threat.
    3. present: It reports "Shots fired", a specific threat.
    4. present: It states "Shots fired at Mariucci Arena", a specific hazard.
    5. present: It names "Shots fired", a specific threat.
    6. present: It names "Shots fired", a specific threat.
    7. present: Names "Shots fired", a specific threat.
    8. present: It names "Shots fired at Mariucci Arena", a specific threat.
    9. present: Names "Shots fired", a specific threat.
    10. present: It names "Shots fired", a specific threat.
    11. present: Names "Shots fired", a specific hazard.
    12. present: It names "Shots fired", a specific threat.
    13. present: It names the threat specifically: "Shots fired at Mariucci Arena".
    14. present: Names the hazard specifically as "Shots fired at Mariucci Arena".
    15. present: Names "Shots fired", a specific hazard.
    16. present: Names "Shots fired", a specific threat.
    17. present: Names "Shots fired", a specific hazard.
    18. present: It reports "Shots fired", a specific hazard.
    19. present: It names "Shots fired", a specific threat.
    20. present: It states "Shots fired", a specific hazard.
    21. present: Names "Shots fired", a specific hazard.
    22. present: It names "Shots fired at Mariucci Arena", a specific hazard.
    23. present: It names "Shots fired", a specific hazard.
    24. present: Names "Shots fired", a specific threat.
    25. present: It states "Shots fired at Mariucci Arena", a specific threat.
  • Locationpresent25/25

    Final assessment

    All reads agree a specific place is named, "Mariucci Arena".

    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: It names "Mariucci Arena" and "the area", specific places.
    2. present: It names "Mariucci Arena", a specific place.
    3. present: It names "Mariucci Arena", a specific location.
    4. present: It names "Mariucci Arena", a specific place.
    5. present: It names "Mariucci Arena", a specific place.
    6. present: It names "Mariucci Arena" and "the area", specific places.
    7. present: Names "Mariucci Arena" and "the area", a specific place.
    8. present: It names "Mariucci Arena" and "the area", specific places.
    9. present: Names "Mariucci Arena", a specific place.
    10. present: It names "Mariucci Arena", a specific place.
    11. present: Says "at Mariucci Arena", a specific named place.
    12. present: It names "Mariucci Arena", a specific place.
    13. present: It names "Mariucci Arena", a specific place.
    14. present: Specifies "Mariucci Arena", a named place.
    15. present: Names "Mariucci Arena", a specific location.
    16. present: Names "Mariucci Arena", a specific place.
    17. present: Names "Mariucci Arena", a specific place.
    18. present: It names "Mariucci Arena", a specific location.
    19. present: It names "Mariucci Arena", a specific place.
    20. present: It names "Mariucci Arena", a specific place.
    21. present: Names "Mariucci Arena" and "the area", specific places.
    22. present: It names "Mariucci Arena" and "the area", specific places.
    23. present: It names "Mariucci Arena", a specific place.
    24. present: Names "Mariucci Arena", a specific location.
    25. present: It names "Mariucci Arena", a specific place.
  • Guidancepresent25/25

    Final assessment

    Unanimous that a protective action is given: "Stay away from the area until further information is given".

    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 instructs recipients to "Stay away from the area until further information is given", a protective action.
    2. present: It instructs recipients to "Stay away from the area until further information".
    3. present: It instructs recipients to "Stay away from the area until further information is given".
    4. present: It instructs "Stay away from the area until further information", a protective action.
    5. present: It instructs recipients to "Stay away from the area until further information is given".
    6. present: It instructs recipients to "Stay away from the area until further information", a protective action.
    7. present: Instructs recipients to "Stay away from the area until further information is given", a protective action.
    8. present: It tells recipients to "Stay away from the area until further information is given", a protective action.
    9. present: Instructs "Stay away from the area until further information is given", a protective action.
    10. present: It instructs recipients to "Stay away from the area until further information is given", a protective action.
    11. present: Instructs recipients to "Stay away from the area until further information is given", a protective action.
    12. present: It instructs recipients to "Stay away from the area until further information is given".
    13. present: It instructs recipients to "Stay away from the area", a protective action.
    14. present: Instructs recipients to "Stay away from the area until further information is given", a protective action.
    15. present: Instructs recipients to "Stay away from the area until further information is given", a protective action.
    16. present: Instructs recipients to "Stay away from the area until further information is given", a protective action.
    17. present: Instructs recipients to "Stay away from the area until further information".
    18. present: It instructs people to "Stay away from the area until further information is given".
    19. present: It instructs recipients to "Stay away from the area until further information is given", a protective action.
    20. present: It tells recipients to "Stay away from the area until further information is given".
    21. present: Instructs recipients to "Stay away from the area".
    22. present: It instructs recipients to "Stay away from the area until further information is given", a protective action.
    23. present: It instructs "Stay away from the area until further information is given", a protective action.
    24. present: Instructs recipients to "Stay away from the area until further information", a protective action.
    25. present: It instructs recipients to "Stay away from the area until further information", a protective action.
  • Timepresent23/25

    Final assessment

    Near-unanimous that "until further information is given" conveys duration and recency; two reads count it as a condition rather than a clock time.

    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: It says to stay away "until further information is given", a duration cue.
    2. present: "until further information is given" conveys duration and recency.
    3. present: The phrase "until further information is given" conveys duration and recency.
    4. present: It says "until further information is given", a duration cue.
    5. present: It uses the recency cue "until further information is given".
    6. absent: No clock time, date, or recency cue appears; "until further information" is a condition, not a time.
    7. present: Says "until further information is given", a duration time reference.
    8. present: It says "until further information is given", a duration time cue.
    9. present: Says "until further information is given", a duration recency cue.
    10. absent: No clock time, date, or recency cue appears; "until further information" is a condition, not a time.
    11. present: Says "until further information is given", conveying duration.
    12. present: It says "until further information is given", a duration cue.
    13. present: It says "until further information is given", a duration cue.
    14. present: Refers to "until further information is given", a duration/time cue.
    15. present: Says "until further information is given", conveying duration timing.
    16. present: Uses "until further information is given", conveying duration.
    17. present: Says "until further information is given", a duration cue.
    18. present: It says "until further information is given", a duration cue.
    19. present: It says "until further information is given", a recency cue.
    20. present: It says "until further information is given", a duration cue.
    21. present: Says "until further information is given", a recency cue.
    22. present: It says "until further information is given", conveying duration and recency.
    23. present: It says "until further information is given", a duration cue.
    24. present: Uses "until further information is given", a duration cue.
    25. present: It says "until further information is given", a duration cue.
  • Impactabsent11/25

    Final assessment

    Absent by 14-11 majority; the alert reports shots fired with police and EMS on scene and to stay away but states no injury or explicit consequence, with substantial dissent reading gunfire as implied lethal danger.

    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. present: Reports shots fired with police and EMS on scene, implying lethal danger to people in the area.
    2. present: Reports shots fired at an arena and instructs to stay away, implying lethal danger to people.
    3. absent: Reports shots fired and tells people to stay away but states no injury or explicit harm beyond naming the hazard.
    4. absent: It reports shots fired with police and EMS on scene and tells people to stay away but states no explicit harm or injury.
    5. present: It reports shots fired at an arena and tells people to stay away, implying a lethal danger.
    6. present: Reports shots fired at an arena, conveying active gunfire and lethal danger.
    7. absent: It reports shots fired and to stay away but names the hazard without stating any harm or severity.
    8. present: Reports shots fired with police and EMS on scene and tells people to stay away, implying lethal danger.
    9. absent: Reports shots fired and instructs people to stay away but states no injury, death, or explicit danger beyond naming the hazard.
    10. absent: This reports shots fired and tells people to stay away but states no injury, death, or explicit danger beyond naming the hazard.
    11. absent: Reports shots fired and to stay away but states no injury, death, or explicit danger beyond naming the hazard.
    12. present: The alert reports shots fired with police and EMS on scene and tells people to stay away, implying a threat of violence.
    13. absent: The alert reports shots fired and tells people to stay away but states no injury, consequence, or stated danger beyond naming the hazard.
    14. absent: Reports shots fired and tells people to stay away but states no harm or explicit danger beyond naming the hazard.
    15. absent: Reports shots fired and to stay away but states no injury or stated danger beyond naming the hazard.
    16. absent: The alert reports shots fired and tells people to stay away but states no injury, death, or explicit danger beyond naming the hazard.
    17. present: It reports shots fired at an arena with police and EMS on scene and tells people to stay away, conveying active gunfire danger.
    18. absent: This reports shots fired with police and EMS on scene and to stay away but states no injury or specific harm to people.
    19. present: It reports shots fired at an arena with police and EMS on scene, with shots fired conveying a lethal threat.
    20. present: Reports shots fired and tells people to stay away, implying clear danger of being shot.
    21. absent: Reports shots fired and to stay away but states no injury or explicit statement of harm or severity.
    22. present: Reports shots fired with police and EMS on scene and directs people to stay away, implying danger of being shot.
    23. absent: Reports shots fired with police and EMS on scene but states no specific harm or injury.
    24. absent: The alert reports shots fired with police and EMS on scene and tells people to stay away but states no injury or explicit harm.
    25. present: Reports shots fired with police and EMS on scene and tells people to stay away, implying deadly danger.

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

About this analysis
Context

Background

On May 30, 2025, a shooting outside 3M Arena at Mariucci on the University of Minnesota campus injured two people following a Wayzata High School graduation ceremony. Gunfire began at approximately 8:20 PM CDT; Hamza Said, 20, of Coon Rapids, was arrested. A 49-year-old father of a graduate was shot in the head and suffered a fractured skull but survived. A 19-year-old was also injured. Both victims were hospitalized and later discharged. A SAFE-U emergency alert was issued by UMN's Department of Public Safety. The Minnesota Daily reported that Said was charged with first-degree assault, second-degree assault, and owning a machine gun. Officers found his discarded graduation gown and a Glock 17 handgun with an automatic conversion device ('switch') and extended magazine near Williams Arena. The Star Tribune and KARE 11 provided local coverage. ABC News covered the story nationally.
Analysis

Key Findings

Police recovered a Glock 17 converted with an automatic 'switch' and an extended magazine, a machine-gun conversion under federal and state law
A father attending his child's graduation was shot in the head and survived with a fractured skull
UMN issued multiple shooting-related SAFE-U alerts across 2024-2025, including a January 2024 threat and the September 2025 Rapson Hall incident
Outcome
Hamza Said, 20, was arrested and charged with first-degree assault, second-degree assault, and owning a machine gun. Both victims were hospitalized and later discharged.
Provenance

Sources

  1. Official
    SAFE-U Emergency (UMN Department of Public Safety)
    publicsafety.umn.edu
    archived copy
  2. News
    Man charged with assault in Mariucci Arena shooting (CBS Minnesota)
    cbsnews.com
    archived copy
  3. News
    Mariucci Arena shooting at University of Minnesota (Fox 9)
    fox9.com
    archived copy
  4. Student Paper
    20-year-old charged after shooting at Mariucci Arena (Minnesota Daily)
    mndaily.com
    archived copy
  5. News
    Suspect in custody after shots fired at U of M arena (Star Tribune)
    startribune.com
    archived copy
  6. national media
    2 shot outside Minnesota high school graduation (ABC News)
    abcnews.com
    archived copy
  7. Official
    SAFE-U Emergency 12 — Mariucci shots fired
    publicsafety.umn.edu
    archived copy
  8. Official
    SAFE-U Emergency 10 — Mariucci incident narrative / suspect in custody
    publicsafety.umn.edu
    archived copy
  9. Official
    UMN SAFE-U Emergency 11 — Mariucci suspect in custody
    publicsafety.umn.edu
    archived copy
Cite this case

Campus Alert Archive. "University of Minnesota: Gunfire outside an arena after a high school graduation wounds two; suspect arrested." Incident of May 30, 2025. Added April 2026; last updated July 2026. https://campusalertarchive.com/case/university-of-minnesota-mariucci-shooting-2025-05-30/

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

Tags
shootingmachine-gunauto-switchgraduation-ceremonymariucci-arenaminnesotahigh-school-eventfather-shotarrest-made
Added April 2026Updated July 2026Via ingestion