a stomach churning crime scene, with a cryptic message in blood. roc. roc was the unusual but proper spelling of karen pannell's ex-boyfriend. >> so tell me about the former boyfriend known as roc, letters scrawled in blood? >> roc was an ex-boyfriend. he had a little legal problems, a little substance abuse problem. >> roc had a person amendment as big and loud as the pipes on the harleys. he worked at an auto body shop handling claims. when he met karen, she was on a downward spiral. after being married five years she recently had got an divorce. the doctor had given her awful news. she had multiple sclerosis,