{
  "id": "2022-11-21-cosumnes-river-college-threat-of-violence-lockdown",
  "slug": "cosumnes-river-college-threat-of-violence-lockdown-2022-11-21",
  "institution": {
    "name": "Cosumnes River College",
    "shortName": "CRC",
    "state": "CA",
    "type": "community-college",
    "alertSystemName": "Los Rios Emergency Alert",
    "enrollment": 14000
  },
  "incident": {
    "date": "2022-11-21",
    "type": "threat-of-violence",
    "cleryCategory": "emergency-notification",
    "headline": "Threat of violence brought a two-hour lockdown; suspect arrested for criminal threats",
    "headlinePublic": "Threat of violence brought a two-hour lockdown; suspect arrested for criminal threats",
    "summary": "On November 21, 2022, Cosumnes River College was placed on lockdown for about two hours after an individual made a [threat of violence against the campus](https://www.thecrcconnection.com/news/2022/11/21/a-threat-of-violence-puts-campus-on-lockdown/). The Los Rios Community College District sent email and text alerts around 11 a.m. instructing the community to shelter in place. The Sacramento Police Department later identified and [arrested 22-year-old Keion Williams for felony criminal threats](https://www.cbsnews.com/sacramento/news/suspect-accused-of-making-threat-of-violence-against-crc-arrested/), and the Los Rios Police Department obtained a campus restraining order against him.",
    "outcome": "Police searched the campus for about two hours and found no active threat on site. The suspect, identified as 22-year-old Keion Williams, was arrested days later for felony criminal threats, and Los Rios police obtained a restraining order banning him from campus. No injuries were reported.",
    "resolution": "confirmed-threat"
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2022-11-21T10:58:00-08:00",
      "channel": "sms",
      "verbatimText": "Cosumnes River College EMERGENCY: Shelter in Place immediately. Lock doors and windows immediately and await further information.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://www.abc10.com/article/news/local/sacramento/cosumnes-river-college-lockdown/103-42ed8b53-f289-41a8-866b-b250d0a926c1",
      "sourceDescription": "ABC10 quoting the Los Rios email and text alert sent at 10:58 a.m. PST on November 21, 2022",
      "annotations": [
        "ABC10 reported the exact alert text sent at 10:58 a.m. PST: 'Cosumnes River College EMERGENCY: Shelter in Place immediately. Lock doors and windows immediately and await further information.'",
        "The 'EMERGENCY' prefix and paired action instructions ('Lock doors and windows immediately') are consistent with Los Rios District shelter-in-place template language.",
        "No suspect location given because the threat was campus-wide, reflecting a blanket institutional response rather than a building-specific directive."
      ],
      "characterCount": 129
    },
    {
      "sequence": 2,
      "type": "all-clear",
      "timestamp": "2022-11-21T12:47:00-08:00",
      "channel": "sms",
      "verbatimText": "police activity at Cosumnes River College has been resolved and the campus is secure. Normal operations have resumed.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://www.thecrcconnection.com/news/2022/11/21/a-threat-of-violence-puts-campus-on-lockdown/",
      "sourceDescription": "The Connection (CRC student newspaper) quoting the Los Rios District all-clear message sent at 12:47 p.m. PST on November 21, 2022",
      "annotations": [
        "The Connection quoted the Los Rios District all-clear message sent at 12:47 p.m. PST: 'police activity at Cosumnes River College has been resolved and the campus is secure. Normal operations have resumed.'",
        "Lowercase 'police activity' at the start of the sentence is unusual, preserved exactly as quoted in the source.",
        "Lockdown lasted approximately 109 minutes from the 10:58 a.m. PST alert to the 12:47 p.m. PST all-clear."
      ],
      "characterCount": 117
    }
  ],
  "context": "Cosumnes River College, a Los Rios Community College District campus in south Sacramento, went on lockdown for about two hours on Monday, November 21, 2022, after an individual made a threat of violence against the campus, [The Connection student newspaper reported](https://www.thecrcconnection.com/news/2022/11/21/a-threat-of-violence-puts-campus-on-lockdown/). The district sent email and text alerts around 11 a.m. telling people to shelter in place, lock their doors, and await further instructions while police searched the area, per [ABC10](https://www.abc10.com/article/news/local/sacramento/cosumnes-river-college-lockdown/103-42ed8b53-f289-41a8-866b-b250d0a926c1). The Sacramento Police Department identified the suspect as [Keion Williams, 22, who was arrested for felony criminal threats](https://www.cbsnews.com/sacramento/news/suspect-accused-of-making-threat-of-violence-against-crc-arrested/); the week after the incident, Los Rios police obtained a restraining order banning him from campus. The case is an example of an emergency notification triggered by a credible verbal threat rather than an on-campus weapon, with a deliberately minimal SMS instruction.",
  "keyFindings": [
    "A threat of violence against the campus put Cosumnes River College on a roughly 109-minute lockdown on November 21, 2022",
    "The verbatim Los Rios initial alert (10:58 a.m. PST on November 21, 2022) used 'EMERGENCY' as a capitalized prefix plus paired action instructions in a single SMS",
    "The all-clear (12:47 p.m. PST on November 21, 2022) used lowercase 'police activity' as the opener, an unusual stylistic choice preserved exactly as quoted",
    "The suspect, 22-year-old Keion Williams, was arrested for felony criminal threats and later barred from campus by a restraining order"
  ],
  "sources": [
    {
      "title": "A threat of violence puts campus on lockdown - The Connection",
      "url": "https://www.thecrcconnection.com/news/2022/11/21/a-threat-of-violence-puts-campus-on-lockdown/",
      "type": "student-newspaper"
    },
    {
      "title": "Lockdown lifted at Cosumnes River College after alleged threat - ABC10",
      "url": "https://www.abc10.com/article/news/local/sacramento/cosumnes-river-college-lockdown/103-42ed8b53-f289-41a8-866b-b250d0a926c1",
      "type": "local-media"
    },
    {
      "title": "Suspect accused of making threat of violence against CRC arrested - CBS Sacramento",
      "url": "https://www.cbsnews.com/sacramento/news/suspect-accused-of-making-threat-of-violence-against-crc-arrested/",
      "type": "local-media"
    }
  ],
  "confidence": "medium",
  "tags": [
    "threat-of-violence",
    "lockdown",
    "shelter-in-place",
    "community-college",
    "california",
    "emergency-notification",
    "los-rios"
  ],
  "dateAdded": "2026-05-28",
  "lastUpdated": "2026-07-16",
  "addedBy": "ingestion"
}