now we can move on and investigate it as a homicide. >> tavia's hopes, crushed. police had ample proof five months after he vanished that larry had been murdered and left to rot out in the middle of nowhere. >> there weren't any stab wounds or any bullet holes. >> there were no obvious signs of larry's cause of death, so they looked further and find something very unusual. >> the medical examiner was able to find out the cause of death was poisoning with a horse tranquilizer. >> horse tranquilizer? >> yes. >> now, that was strange. but get this. >> he had been dead for an extended period of time. however, the body had not decomposed consistent with the time frame we were looking at. >> meaning? >> meaning it was preserved, kept cold. >> one of the first things i thought, where would they have access to a walk-in refrigerator large enough to hold a human body? >> detectives wanted answers, and so did larry's daughter, tavia, who sometimes believed she could hear her father in her sloo epi. >> i would wake up and i would hear him calling for me to help him. i didn'