|Full name||Wilhelm Moss|
|Cause of death||Central nervous system failure|
|Appears in||Criminal Case|
|First appeared||Case #25: The Ghost of Grimsborough (s1)|
Wilhelm was an elderly artist who had curled gray hair, beard, and black eyes. At the time of his death, he wore wore a blue beret with a yellow paint stain, a green plaid shirt, and a beige apron which had green and red paint stains.
Whilst finishing a portrait of The Mad Pilgrim, Wilhelm mysteriously dropped dead, gripping his paintbrush with his eyes open. His death seemed to be of no cause, and because of that, a lot of people, including Eduardo Ramirez, were convinced that the Pilgrim's ghost had killed Wilhelm. They claimed that Wilfred had looked into the Mad Pilgrim's eyes and died of fright.The Pilgrim was a cruel man who ruled over Grimsborough during the 17th century. He had sent hundreds of people to the gallows for the most trivial reasons. Finally, the people of Grimsborough had enough, and one night, the Pilgrim's maid posioned his mead, and let the peasants in. They cut the Pilgrim's body into pieces and buried them to four corners of the town. After this, the people used to believe that the Pilgrim's soul remained trapped on the Earth, forever angry. Anyone who had tried to paint his portrait had died in most unusual circumstances.
Nathan told Jones and the player that the victim's death was a mystery even to himself after completing the autopsy. He said that Wilhelm was killed by a complete failure of his central nervous system. All his muscles had contracted violently, which explained why the victim was still gripping his paintbrush. Furthermore, Nathan said that he had found no trace of toxins in Wilhelm's blood, or anything that could explain the victim's death but tells them to talk to the Historical Center pharmacist, Renee Leland if she can tell if the victim have medical conditions that they need to know.
Later, when the team was searching the window of Wilhelm's workshop, they found glass shards. They then restored the glass shards and found about that it was an ampoule (a glass object) and gave it to Grace for analysis. After completing the analysis, Grace confirmed the team that the ampoule was the murder weapon. She said that it held traces of a powerful and very rare neurotoxin, one that would have easily contaminated the atmospheric air in a room like the victim's workshop. Then, the neurotoxin would degrade quickly, becoming almost untraceable, and after a few hours, it would still may induce some nausea.
Killer and motives
The killer turned out to be a wealthy collector named Patrick Rufio.
Patrick killed Wilhelm with a poison named Neurotoxin Ampoule when the victim was about to finish the painting of The Mad Pilgrim. Patrick was getting poor day by day. Since Wilhem had no marks on his body and his death seemed to be of no cause, everyone believed that The Mad Pilgrim's ghost had killed him, thus making valuable framework. The valuable painting belonged to Patrick and he wanted to sell it for money and make profit. For this reason, Patrick killed Wilhelm.