first skyler moore, c-styles, was on trial along with derek.t see c-styl c-styles' confession tape. here was a man they told the jury who do almost anything to avoid paying child support. >> crystal and her five-month-old unborn son was killed with one gunshot. >> that fit a pattern. >> they called derek's old girlfriend, tracy williamson, who repeated her story with the first time she was pregnant with derek's child. she was attacked by a man she did not know. >> he put a knife on my throat. >> did he cut you with a knife? > >> yes. >> the second attack? >> somebody socked me on the face and somebody stomped me on my stomach and my face >> then derek's own daughter took the stand against him. she told this that derek hated being a father. >> he was very rude. he didn't spend much time with me. when he did, it seems like it was kind of for show. he would be a certain way and when those people left, he would go back to his rudeness and kind of monstrous ways. >> prosecutors called her sister, michelle, when she testified in the first trial. >> i