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Wednesday, October 28, 2026Oct 28

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How surveillance technology and the ‘Reddit Detective Agency’ helped search for a killer

This image provided by Providence Police Dept. shows surveillance images of Claudio Neves Valente, a suspect in the mass shooting at Brown University. (Providence Police Dept. via AP)
This image provided by Providence Police Dept. shows surveillance images of Claudio Neves Valente, a suspect in the mass shooting at Brown University. (Providence Police Dept. via AP) This image provided by Providence Police Dept. shows surveillance images of Claudio Neves Valente, a suspect in the mass shooting at Brown University. (Providence Police Dept. via AP)

PROVIDENCE, R.I. (AP) — More than a decade ago, a frenzied 5-day search for the Boston Marathon bombers left some lessons in its aftermath.

One was that increasingly pervasive surveillance technology could help catch the culprits. Another was that amateur online sleuths on Reddit could not.

But the intense search this week for a suspect in a Brown University shooting that killed two students and wounded nine other people turned the tables on those expectations.

Sweeping surveillance, now found in doorbells, cars and a vast network of vehicle-tracking cameras, did eventually help track down the whereabouts of Claudio Neves Valente, the 48-year-old former Brown graduate student investigators believe was responsible for the Dec. 13 shooting and another killing two days later of an MIT professor in Brookline, Massachusetts.

But the latest artificial intelligence-powered surveillance was of little use in the early search for a gunman who walked away from the Brown campus after the shooting and slipped unnoticed into the surrounding neighborhoods of Providence, Rhode Island. He evaded detection for days, using a hard-to-trace phone, avoiding facial recognition software by obscuring his face with a medical-type mask and switching the license plates on his rental cars.