to alaska. maybe sanchez is on to something. " >> but that's exactly what people do. you know, they get in trouble. they take off for alaska or someplace like that, or mexico or something. but for whatever reason, no effort was made to bring billy lee back to silver city for questioning. and investigators quickly turned their attention to another man in cassy's life, her live-in boyfriend, david berry. >> his behavior the first few days after her death was very strange and peculiar to me. >> how so? >> i, myself, never really saw him shed a tear. but i was suspect of everyone that had any contact with her. i didn't trust anyone. >> at the funeral cassy's casket was left open to tell the world what was done to her, said her siblings. >> her face was covered in bruises. her neck was a giant bruise and swollen. her hands were black. >> but who had done it? for