CAMBRIDGE, MASSACHUSETTS — A gunman armed with an assault-style rifle fired more than 60 rounds at passing cars along the Charles River in Cambridge, Massachusetts, on Monday afternoon, May 11, 2026, wounding two drivers before being shot and arrested. A state trooper and a former Marine opened fire on the suspect, identified as 46-year-old Tyler Brown of Boston, who was struck multiple times in the extremities.

Bullets pierced at least a dozen vehicles, including a state police cruiser, as motorists abandoned their cars or hid beneath them for cover. The two wounded drivers were hospitalized with life-threatening injuries. The shooting took place near Harvard University and the Massachusetts Institute of Technology.

Brown is expected to face charges including two counts of armed assault with intent to murder and other gun offenses. The Cambridge District Court said on Tuesday that he was not medically ready for arraignment. The Committee for Public Counsel Services has been appointed to defend him. Investigators found no connection between Brown and the people targeted.

Court documents show Brown had been released from a psychiatric hospital on the Friday before the shooting. About an hour before the attack, he connected with his parole officer via video conference. "I had relapsed and wanted to end my life," Brown said during that call. The parole officer called police, who used phone records to locate him in Cambridge.

Rachael Saveriano said she was trapped in her car when she saw Brown walking toward her waving his gun. A former Marine opened her car door, pulled her out, and told her to run. She saw the man firing at Brown before she ran into a nearby hotel. "He is an incredible hero. He was so calm, and he didn't hesitate," Saveriano said.

"While people were jumping from their cars, scattering in various directions, both that trooper and that civilian, rather than going in one direction, went toward the suspect with their weapons to try to end that situation," Middlesex District Attorney Marian Ryan said. "What happened today cannot stand," she added. Ryan renewed her call for harsher penalties for people who fire weapons without regard for the risk of serious injury.

Brown was previously convicted in 2020 of firing several rounds at Boston police officers, according to the Suffolk County District Attorney's office. Prosecutors had recommended he serve at least 10 years in prison, citing the level of violence and his probation status from a 2014 conviction on assault and witness intimidation charges. Suffolk Superior Court Judge Janet Sanders ordered him to serve five to six years in state prison and three years of probation, with credit for 18 months already served.