>> womanizer, scoundrel. the prosecution dissected his character and referred to him as the only possible killer. >> our concentration was to show that he was the only guy, that he was the one who had to have done it because no one else on earth would have. >> speak loudly. your first name is kim? >> yes. >> prosecutors called this witness who worked at a nail salon in the same strip mall as comics world. >> i would say i witnessed about 30 to 35 arguments. >> she testified she'd heard many arguments between michael and barbara that summer, but the one she heard that day, friday the 13th sound uglier. >> it was much louder. he was much angrier and seemed much more violent. >> than the ones in the past? >> yes. >> less than four hours later, barbara george would be discovered by customers on the floor in the back of comics world. yet in this public place of a strip mall, customers coming and going, cars, no witness remembered hearing gunshots, though, two had been fired. and no one remembered seeing anyone leave the store, and no witness saw michael george at the store from the time he left after 4:00 until he drove up at 8:00 for what was to be his