ruse. trying to worm his way back in? that s the way she put it to me. they knew they had to confront this roc, so they tracked him down and paid a surprise visit. he wasn t happy to see this. i m at my home in north port, florida, mark shows up, everybody know what is that is. i m thinking, what the heck is that? detective holbrooke identified himself and said they need to talk to him about his friend karen. we sit down on the porch and he goes, well, she s dead. of course this doesn t register. and i just 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 dolled up, oh, my god, gorgeous. i mean, picture perfect. wasn t anything out of place.
she was incapacitated. she didn t write that. the evidence was overwhelming. karen did not write the letters roc in blood. it was a turning point in the case and the best news ever for the ex-girlfriend. they confirmed 100% she could not have done that. she would have been physically incapable of doing that. and it surely wasn t me. i mean, why would you write your own name on the wall. police agreed implicating yourself in a murder just made no sense. roc got more good news after police checked outlet his alibi he was home on the night of the record. got his cellphone records and the cell towers are hitting off at the same time we know karen was killed. he s in north port, florida, and that s a good hour, hour and a half a away. and you went over all these alleged beeves he had with her. absolutely.
roc it turned out was a man that spelled trouble for karen in the past. roc was an ex-boyfriend karen pannell had problems with previously. and whoever and wherever this roc was, he d just become the prime target of the investigation into her murder. okay. well, there it is. that s what she meant to write was roc. they have to follow that lead, and off they go. to find roc? to find roc. coming up, mission accomplished. find him, they do. what do you think she saw in you? the bad boy kind of thing. what would they find next? i m looking at murder, somebody s talking to me about a murder. when written in blood continues. n written in blood continues.
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 laced kind of guy. roc was open with the detectives. even came across as a good guy. but conceded there were screaming matches with karen and a few rip roaring fights but said she was the instigator. she d get violent, physically violent. just stuff. things would happen. but nobody ever got arrested, but they d come out. they would address the issue. as roc tells it, she gave as good as she got. he dodged a few pieces of thrown crockery. she was ready to stand up for herself at the drop of a hat. she was a tough girl. reporter: roc remembers karen
investigation. the letters roc smeared on a wall matched karen s former boyfriend roc. and soon a forensic break through would force detectives to reconsider the bloody clue. not only what it meant but who wrote it. here again is dennis murphy. reporter: the handwriting was on the wall and forensic specialist ana cox was intent on breaking down the key piece of evidence implicating karen s first boyfriend roc. you would spend hours looking at these letters. you actually cut the sheetrock out of the place and took it into your lab? yes. i have to look at those letters, at everything about them. using a high powered microscope ana did an analysis of the specks of blood as karen was stabbed 16 times. that flow spatter served as a