A new video of Philadelphia street attacks has surfaced—and this time the teen perps are students from a charter school that received a $1 million donation from Oprah Winfrey, according to Fox 29, which obtained the footage. Caught On Tape: Philadelphia Teen Mob Attack: MyFoxPHILLY.comThe incident occurred July 29—the same day flash mob attacks took place in another section of the city—just blocks from Mastery Charter High School. Students in the video face expulsion or suspension, school officials wrote in a letter to residents in the area where the attack took place. Sources told Fox 29 that man attacked in...