An autopsy determined that the cause of death was multiple stab wounds inflicted by a pair of scissors stamped with the Blood Bank logo. The police found them next to a pair of discarded surgical gloves and an empty cooler on the back stairway that led from Lundy's office down to the first floor lobby. Perhaps the killer had meant to drag the body there where it might remain out of sight for a while longer and then thought better of it. In any case, hopes that latent fingerprints on the gloves, scissors or cooler might move the search for the killer along died quickly.
Hamlin and his crew of three men knew that the killer had to be a member of the technical staff as only they and the day and night supervisors had keys to the blood storage room. The killer had also unknowingly left something behind. A candy wrapped in silver foil with foreign writing on it was found under the dead man. Police surmised that it had fallen unnoticed, possibly out of a lab coat pocket, during the transport of the body to the place where they found it.
Andre LaFarge, friend and roommate of the recently separated Thomas Borg, was the first technician to be questioned. He had been able to provide one small piece to the puzzle, but exactly how important it was would remain to be seen. He told Hamlin that Borg, who had worked for years at the same job, never varied his clean-up routine. He always mopped the storage room floor last because there was less traffic there at that time of night, which provided ample time for it to dry by morning. It was, without exception, always the very last thing he did before he put his things away and went home.