What should I do about a witnessed act of police brutality?

Last friday after leaving a Concert at the TLA in Philedelphia i witnessed several acts of Police brutality. if anyones interested ill type up the story later, but its 4am right now :P I already found i can report misconduct here but is there anything else i should do about this? Like is this something you call the news over? (i recorded all of it on my phone but stupidly closed my phone before hitting save. So really no evidence but there were at least 100 witnesses to this whole thing.)