dave kroupa. >> she did it, because she wanted this man. >> reporter: jealousy makes people do strange things, but that's just -- why so much? what -- why? >> i think it snowballed. i think once she did it she couldn't stop. she had to make cari look like she was still alive to keep the heat off of her, and it just went on, and on, and on for years. dave kroupa heard it all, and finally understood. >> i mean, it makes sense now, at the end. you know? but the tarantino movie always makes sense at the end. you know, it doesn't make any sense getting there. >> reporter: and liz's defense attorney james martin davis agreed. it was like a movie. a fictional one. >> i know they've got all this bizarre behavior, and they've got all this circumstantial evidence, but it doesn't show my client on that day in this jurisdiction took a knife, and stabbed cari farver to death. >> reporter: without that? no murder case. >> defense attorney, you may have camcorders, and you may have smart cards, and you may have phones, but you don't have a body, and you don't have a