october 14th, 2010, upper darby, pennsylvania. just a few miles outside philadelphia, the 69 street bus terminal is a busy hub for people coming and going into the city. as captured by the buses outward looking security camera, rasheed bingham waits at the terminal with his two young sons. >> it's always packed. there's always a lot of things going on down there, especially at rush hour. >> footage from an interior security camera shows bingham and his sons boarding a philadelphia transit bus. a few steps behind them is a young woman with cell phone in hand. and she's about to start talking loudly. >> how loud was she? i guess on a scale from one to ten, probably a seven and a half. probably close to an eight. >> as the bus sits outside the terminal, bingham isn't bothered by the girl's chatter. but he says an older woman sitting next so her is pretty annoyed. >> she just wasn't too happy with the lady's tone and how loud she was, so she immediately got up and moved. she did say something like, nobody wants to hear your conversati