Overview
- A chaotic series of crashes began on Saturday when a driver crashed at Woodhaven and Blue Hill Avenue, allegedly carjacked a vehicle at a nearby car wash, and then drove onto the Blue Hill Avenue sidewalk, striking a pedestrian who was pronounced dead at the scene.
- Police arrested 37-year-old Ibraim Matos of Hyde Park and charged him with murder, carjacking, leaving the scene of an accident resulting in death, and related counts; he pleaded not guilty and is being held without bail.
- A judge ordered a 20-day competency and mental-health evaluation at Bridgewater State Hospital and set a status review for July 10 as prosecutors assemble surveillance and witness evidence describing the victim being struck and dragged.
- Bystanders and an MBTA bus driver intervened after the stolen car crashed into other vehicles and the bus, forcibly removing and restraining the suspect until officers arrived, which officials say prevented more harm.
- Authorities have publicly identified the victim as Mabinty 'Binty' Janneh and the investigation remains active; a second man was arrested for entering the taped-off crime scene, and the episode has left the Mattapan community shaken and focused on questions about mental-health and public safety.