Live Bait / Drama at the Classic

A man meets a young lady on the bus. He gives her his number and later she calls. He and a friend go over to her apt. but are ambushed as they enter. Where they set up, or was this just a coincidence? Were the girls live bait? At an annual celebration that coincides with a football game a man is killed. During the investigation it's learned that the dead man's ex-girlfriend may have something to do with this filling. Is that the case?