Investigators identified Tyler Brown of Boston as the man who allegedly opened fire on Memorial Drive in Cambridge, Massachusetts, leaving two victims with life-threatening injuries.
Middlesex County District Attorney Marian Ryan said Brown fired 50 to 60 shots on the busy road shortly after 1 p.m. Monday.
Two male victims were hit in vehicles, Ryan said. They are in critical condition and fighting for their lives.
A Massachusetts State Police trooper and a civilian with a license to carry a firearm went toward the gunman and fired their weapons at him. Officers treated Brown at the scene, and he was brought to a Boston hospital, where he is in intensive care, according to the district attorney.
This video shared with NBC10 Boston appears to show a man opening fire at cars on Memorial Drive in Cambridge, Massachusetts, on Monday, May 11, 2026.
Authorities have, so far, shared limited information about the suspect.
“Mr. Brown is from Boston, and apparently was in the process of moving here. We understand that Mr. Brown was under the supervision of either the Massachusetts Probation Department or Department of Parole,” Ryan said.
She did not elaborate on why Brown may have been on probation or parole.
“We will address Mr. Brown’s criminal record, if any, at the arraignment,” she said.
Ryan added that she did not know enough about Brown’s condition to say whether he would be arraigned in court or in a hospital bed. The timing was also not clear.
He will face two counts of armed assault with intent to murder and firearms charges, and “a variety of other charges as we unfold what took place, exactly, and we have a chance to speak to the many, many people who were out there,” Ryan said.
