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Brown University custodian says he reported gunman multiple times before shooting

Custodian Derek Lisi reported seeing the suspect multiple times and alerted campus security thrice without action before the shooting that killed two students and injured nine.

  • Derek Lisi, a custodian at Brown University, said he reported a suspicious man multiple times before the shooting that killed two students and injured nine others on December 13.
  • Lisi claimed he alerted a third-party security company about the suspicious man three times, but nothing was done.
  • The suspect, Claudio Neves Valente, is also accused of killing an MIT professor, Nuno Loureiro, with whom he had previously studied in Lisbon.
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Bias Distribution

  • 53% of the sources are Center
53% Center

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PJ Media broke the news in on Monday, December 22, 2025.
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