Ok so I did some talking to a couple people that were around. Including the folks who live in the house it happened in front of. And best I can tell this is what happened.
Asshat group A started talking shit to fuckstick B, Fuckstick B went and got his "peeps" A total of about 15 people were involved. There were no guns involved though someone said they were going to go get one. Someone did pull a knife, the police caught that person and two others. Somone had the smarts don't know who, to call the cops and tell them it looked like a fight was about to start. So the cops got there pretty quick before it had a chance to blow up into something worse. All involved were UNDER 18yo.
This happened right by Fratt school. As a result of this anyone under 18 that wants to go hang out and play on the playground at the school must now be accompanied by a parent/guardian. It all started at the school's playground.