Overview
- Prosecutors say Tyler E. Brown allegedly fired more than 70 rounds into traffic on Memorial Drive on May 11, striking two motorists who were treated and released from the hospital.
- Investigators recovered a multi‑caliber BCI‑Defense Model FF‑15 and about 70 spent casings at the scene, and officials say Brown did not have a license to carry the weapon.
- Brown was subdued after a Massachusetts State Police trooper and an armed bystander identified as a Marine veteran returned fire; he appeared in a wheelchair at his Sept. 10 arraignment, pleaded not guilty, and remains held without bail.
- Court filings say Brown was discharged from a psychiatric hospital three days before the shooting and that he contacted his parole officer the day of the attack, showing a gun on FaceTime and making suicidal statements, details that have raised questions about parole and discharge oversight.
- An Aug. 25 grand jury indictment upgraded the case to 43 counts including six counts of armed assault to murder, a charge that carries far longer maximum sentences and sets a dangerousness hearing for Oct. 8 that will shape pretrial custody and next steps.