Glendale police said an air conditioning technician found large spools of copper wiring had been unraveled in the back of his truck Oct. 8 and there was a severed finger entangled in the wiring, KPHO-TV, Phoenix, reported Friday.
"I can't believe he didn't come back and get the finger, I would've come back and got the finger," Champion Air technician Bill Bratcher said.
Glendale police officer Tracey Breeden said police were able to get a print from the finger.
"They took a Popsicle stick and were able to attach it to that finger, and they were able to roll that finger and get a print on that finger," Breeden said.
Police said the fingerprint was identified as belonging to Joshua Goverman, 29, who was confirmed to be missing a finger when he was arrested a few days later.
Goverman initially told officers he lost his finger while working on his car, Breeden said.
The suspect was charged with misdemeanor theft.