the investigation. >> who would want to kill syd? you know? how is this possible? >> my initial involvement in the case was being assigned to the crime scene. there was very little blood spatter but there was some. >> they used a substance called luminol to look for the presence of blood at a crime scene. >> we got quite a bit of reaction. somebody with something with blood on it had been moving around the apartment. >> the trail in the apartment went into thayne's bedroom. on the coffee table next to where syd's body was, we found a note and an envelope. the envelope had the number $300 written on it. august 1 was rent the day. thayne was due to pay syd $300 he was going to take to his hother. we didn't find anything in that