Update: Two arrested.
Updated 12 a.m.
Boston Police report an 18-year-old shot repeatedly at W. Brookline and Tremont streets around 7:20 p.m. died not long after at Boston Medical Center.
The teen, identified by family and friends on Facebook as Alex "Blanco" Sierra, was found inside El Barbaritos hair salon.
Two suspects, spotted fleeing in a gold minivan, were tracked to the area of Annunciation Road and Prentiss Street, near the Ruggles T stop and behind Boston Police headquarters. At least one may have been arrested on the other side of Tremont, at Warwick and Hammond streets:
About 4 Staties, 3 undercovers, 2 helicopters, 1 Taser and a perp.