A 16-year-old boy from Braintree is accused of beating and breaking the jaw of another teen his age, allegedly over a teen girl, at a Boston park, the district attorney said.
The brutal attack is said to have happened after the boy’s ex-girlfriend showed an interest in the victim. The two boys were “best friends” prior to the incident, the victim’s mother told police.
The accused teen was not identified because he is a juvenile…