Overview
- The shooting on Memorial Drive near River Street unfolded Monday afternoon, and a Massachusetts State Police trooper took the suspect into custody after shots were exchanged.
- The gunman was identified as Tyler Brown of Boston, and the Middlesex district attorney said he will face two counts of armed assault with intent to murder.
- Investigators reported 50 to 60 rounds fired in a short span, and two men in separate vehicles were rushed to Boston hospitals with life‑threatening injuries.
- A state trooper and a former Marine licensed to carry moved toward the shooter and struck him multiple times, which stopped the attack, according to officials.
- Separate weekend shootings in Boston left one man, Michael Jacob, dead in Mattapan and four others wounded in Dorchester, and police are treating those cases as distinct while checking for any link to the Cambridge incident.