UPDATE: Transit Police report the suspect turned himself in.
Transit Police have issued a BOLO for a guy they say started screaming at a group of young kids and their chaperone on a Green Line trolley to Lechmere yesterday afternoon - and then physically attacked their chaperone at the station.
The victim was chaperoning/supervising 1st and 2nd grade children as they traveled on the MBTA returning from a field trip. The suspect male, who boarded at North Station, was in possession of a dog. The victim politely requested he keep the dog away from the children. The suspect male responded by shouting at the victim and using foul obscene language. This was done in the presence of the children.
The suspect also threatened to "kill" the victim and bragged of "killing people" for less. Upon arrival at Lechmere station the suspect male physically assaulted the victim and left the area towards the direction of Cambridgeside Galleria.
Police say the assault involved him "violently shoving" the woman from behind.
If he looks familiar, contact detectives at 617-222-1050 or send an anonymoust tip to 873873.