"He was my soulmate."
After being inspected by the vet, it was confirmed Paco had been hit by a car.
"The vet said it was a low-speed killing because they could tell by the shape of his claws.
"So someone had hit my cat and thrown him up a tree. What kind of person does that," Wolfson said.
"After my wife died that cat was the closest thing to me. If it was a person who was hit there would have been a prosecution."
Wolfson said he had no choice but to put out a reward to get answers.
"It started with $50 then my neighbour offered to put in another $50 ... Paco was well known in the area ... and now I'm offering $500 ... I just want answers."
Paco was from Colorado Springs and Wolfson said he had more than $5000 invested in him.
The response he's had from Facebook has been mostly sympathetic posts but "still no answers".
Ocicats have been described as having the temperament of a "dog in a cat's body". Cats from the rare breed have been trained to fetch, walk on a leash and harness, come when called, speak, sit, lie down on command and other canine-style tricks.
Ocicats, which were bred from Siamese to Abyssinians in the United States in the 1960s, require closer attention from their owners than most other cat breeds.