>> detective holbrooke identified himself and said they need to talk to him about his friend karen. >> 23 sit down on the porch and goes, well, she's dead. this doesn't register. i said, you need to tell me what's going on. >> but the detective wanted roc to do the talking. he asked about his troubled relationship with karen. >> roc indicated that he was using drugs and that karen liked to drink and that they fought often. >> roc said he savored the good times with karen, too. >> when she got cold up, oh my god, gorgeous. great, picture perfect. wasn't a thing out of place. >> were there some sparks there, roc? >> yeah, there was, she was all that, just by herself and ready to go. she looked hungry for attention and she was alone and it was perfect. it was a perfect setup. >> what do you think she saw in you? what was working from her side? >> probably the bad boy kind of thing. i wasn't your conventional straight lasd kind of guy. >> roc was opened with the detectives. even came across as a good guy. but conceded there were screaming matches with karen and a few rip roaring fights bu