she willingly did and not some sign of mental fragility? >> i really don't know what happened at that time. >> now she said, she needed to know how rebecca died. she had rebecca's body exhumed, and media friendly forensic pathologists, dr. --, performed a second autopsy. his conclusion? homicide. >> was rebecca murdered? her family thought so. and eventually the case found its way to this man. >> it was intriguing from the beginning. >> san diego attorney keith greer. >> the doctor did identify some deep bruising and internal bruising which couldn't be explained by the hanging. >> wait one second, it couldn't be explained by the hanging but could be explained by what? >> by somebody knocking her down from behind and hog-tying her, something along those lines. a struggle. >> plus greer said the force of falling nine feet from the balcony should've caused more severe injuries to rebecca's