Police ask for help identifying teens behind attack in Quincy, MA

Police in Quincy, MA are asking the public for help in identifying a group of teens seen on a video posted to social media assaulting another group of teens while on a pier near Marina Bay:

Read more: http://twitchy.com/gregp-3534/2017/08/03/police-ask-for-help-identifying-teens-behind-attack-in-quincy-ma/