it was horrible. what did you think happened? i thought he had fallen because he had a big gash in the back of his head. i went to the kitchen phone and called 911. reporter: when she rolled him over, she could see wounds all across his chest. he d been stabbed many times. every time i started doing cpr, every time i d breathe into him, i could hear bubbling. air escaping. then i started to feeling iti on his chest. reporter: it s not often little placentia, california, has a murder. r: 10:00 p.m. when i got the call. reporter: aaron wyatt was the sole homicide detective. what did the crime scene itself look like? it was pretty bloody. there was evidence of a violent struggle between jack and his killer. the kind of thing that might happen if it was a hope invasion, robbery, or something? or assault between people who knew each other. e reporter: protocol told him