Cambridge Memorial Drive Shooting Suspect Indicted On New Charges

The man has six new counts to face in addition to the many he is already awaiting trial for.

By Benjamin Pierce, Patch Staff

Sep 9, 2026 4:37 PM EDT | Updated Sep 9, 2026 5:34 PM EDT

Brown has been in custody since the incident took place in May. (Boston Regional Intelligence Center)

CAMBRIDGE, MA — The suspect in the Memorial Drive shooting has been indicted on a slew of additional charges more than four months after police say he opened fire on motorists in Cambridge.

Tyler Brown, 47, of Boston, was indicted in connection with the Monday, May 11 shooting that occurred on Memorial Drive between River Street and Pleasant Street Extension, according to Middlesex District Attorney Marian Ryan, Massachusetts State Police Colonel Geoffrey Noble and Cambridge Police Commissioner Pauline Wells. Brown is scheduled to be arraigned on the new charges Thursday, Sept. 10, at 11:30 a.m. in Middlesex Superior Court in Woburn.

The new charges include six counts of armed assault to murder, assault and battery with a dangerous weapon causing serious bodily injury, two counts of assault and battery by discharging a firearm, four counts of attempted assault and battery by discharging a firearm, six counts of assault and battery with a dangerous weapon, and four counts of assault with a dangerous weapon on a person over 60.

He also faces seven counts of malicious damage to a motor vehicle, two counts of intentional reckless discharge of a firearm, possession of a firearm after being convicted of a felony, two counts of wanton destruction of property over $1,200, three counts of wanton destruction of property under $1,200, carrying a firearm without a license, two counts of possession of ammunition and two counts of possession of a large-capacity magazine.

Brown is accused of shooting two motorists before exchanging gunfire with law enforcement and an armed civilian. One of the victims was identified as Casmir Bangoura, 34, a Cambridge resident and DoorDash driver who was returning to his apartment when Brown allegedly approached his vehicle and opened fire. Bangoura was shot four times in the leg.

The other victim, an MBTA bus driver and father of eight, was shot in the back of the head while attempting to drive away from the scene. He was able to drive himself to the hospital despite his injuries. Both victims were later released from the hospital and were expected to fully recover.

When law enforcement responded to the shooting, Brown allegedly began firing at officers as well. More than 60 rounds were reportedly fired during the incident before Brown was shot multiple times by a Massachusetts State Police trooper and a former Marine who had a license to carry. Brown ultimately surrendered and was transported to the hospital.

Brown made his initial court appearance virtually from his hospital bed on Thursday, May 14. He pleaded not guilty to two counts of armed assault with intent to murder, carrying a firearm without a license and possessing a large-capacity firearm. Prosecutors identified the weapon allegedly used in the shooting as a multi-caliber Defense Model BCI assault rifle.

Brown has remained in custody since he was deemed dangerous during a hearing one week after his initial arraignment. Assistant District Attorney Nicole Allain presented nine pieces of evidence at the time to support the prosecution's argument that Brown should remain in custody, including video from the shooting and Brown's criminal record. Allain is also prosecuting the newly indicted case.

Brown was on parole at the time of the incident stemming from a shootout with Boston Police in the spring of 2020. He later pleaded guilty to eight charges in connection with that incident, including armed assault with intent to murder and attempted assault and battery by discharging a firearm. Brown was sentenced to five to six years in state prison before being released on parole in 2025.

According to Brown's parole officer, Brown had recently relapsed on crack cocaine and expressed suicidal thoughts in the days leading up to the Memorial Drive shooting. Brown also reportedly displayed a rifle during a video call with the parole officer. A neighbor corroborated that Brown had been acting erratically the night before the shooting and had also been drinking alcohol.

Brown had been released from McLean Psychiatric Hospital in Belmont on Friday, May 8, three days before the shooting.

Brown has pleaded not guilty to the charges previously filed against him. The case remains ongoing.