Haunted Funeral Parlor

The Coffee Creek funeral director, Will U. Solvit, went missing decades ago and authorities still have no leads. Since the untimely disappearance of Mr. Solvit, the Coffee Creek Funeral Home has fallen into disrepair. It is haunted by the ghosts of Mr. Solvit and his murderer. The ghosts are unable to communicate directly with the living. Instead, the ghost of Mr. Solvit's murderer has left devious puzzles to taunt investigators, while Mr. Solvit has left clues to help avenge his death. So far, police have been unable to identify the murderer. Skeptical of your claim that you will make any progress, the police have begrudgingly allowed you one hour of access to the crime scene. Can you figure out who killed Mr. Solvit in time?