UPDATE: Victim identified as Brent Stevenson, 37.
Around 8:05 p.m. About five shots fired, one car crashed, SUV sped off. Homicide unit called in.
Shell casings were found on Mass. Ave. near Newbury Street and near Haviland Street; the crash was at Huntington. Several bystanders suffered minor injuries.
Police are looking for a dark gray RAV 4 with Michigan plates. NBC Boston reports the driver of the SUV and the white car that crashed near Huntington took turns ramming each other before the car driver was shot.
Massachusetts Avenue is shut from Newbury to Huntington. Huntington inbound is shut at Northeastern.
Crime scene near Newbury Street (photo by Paula Tennyson):