according to forensic experts, she was dead before the fire started. the method? a particularly intimate form of killing. death by strangulation. >> strangling someone is a very personal killing. it's a very angry killing. it's not like shooting someone from a long way away, i don't imagine. you're touching the person and feeling their life's blood ebb from them. >> who could have been so angry with jennifer? paul had told detectives that he and jennifer had taken out restraining orders against those brothers, hisham and tony ghanma. men part of his inner circle who he had considered former friends. >> they're trying to get us. they are trying to harm me. >> who is that? >> hisham. >> the guy you have a restraining order against? >> several restraining against him. he hit me. he has a restraining order against me. >> and just one night before, after paul's birthday celebration, paul told police some guys in a truck tried to