Highway of Horror: Gunman Opens Fire on Random Vehicles in Cambridge, Massachusetts | GRAPHIC
A gunman’s random shooting spree on Cambridge’s Memorial Drive was stopped by the combined firepower of a State Police trooper and an armed former Marine.
A gunman opened fire on passing vehicles along the busy Memorial Drive in Cambridge on Monday afternoon, critically injuring two drivers before a Massachusetts State Police trooper and an armed civilian quickly stopped him in a dramatic daylight confrontation.
The suspect, identified as 46-year-old Tyler Brown of Boston, allegedly walked down the middle of Memorial Drive near River Street around 1:20–1:30 p.m., firing an assault-style rifle at random cars. Witnesses described hearing dozens of shots, with authorities estimating Brown fired between 50 and 60 rounds total, striking at least a dozen vehicles.
Two drivers suffered life-threatening injuries, including an MBTA paratransit van operator. No officers or the armed civilian were hit.
A Massachusetts State Police trooper and a former Marine who was caught in traffic engaged Brown within seconds of the shooting erupting. Both fired, striking the suspect multiple times in the arms and legs. Brown was treated at the scene and transported to a Boston-area hospital, where he remains in police custody in the ICU.
Middlesex District Attorney Marian Ryan confirmed there is no ongoing threat to the public. The area was shut down for hours as investigators collected evidence, including bullet casings and vehicle damage.
Suspect’s Criminal History
Brown is no stranger to law enforcement. In 2020, he was involved in a shootout with Boston police and later convicted of attempting to kill officers. Prosecutors had sought a longer sentence, but he received five to six years and was recently under parole or probation supervision. He faces charges including multiple counts of armed assault with intent to murder, along with firearms offenses. Additional charges are expected.
Witness Accounts
Witnesses described chaos on the normally bustling roadway near Harvard University. One told reporters he was “running for [his] life” as bullets flew. Video circulating on social media shows Brown casually walking and firing as cars swerve and stop.
Massachusetts Governor Maura Healey praised the trooper’s quick action, calling him a hero.
The investigation remains active, with State Police urging anyone with video or additional information to come forward. Memorial Drive has since reopened.