Sgt Richard Lewis, who was investigating the theft, revealed: "It was not recovered in whole. It was chopped. We have numerous pieces recovered but not the entire car."
Two men have been arrested for the crime - D L Rayford Jr. pleaded no contest to grand theft auto earlier this month, while Michael T. Green has pleaded not guilty to two counts.
Rayford has been ordered to pay John $50,000 in restitution and has must serve 16 months in jail, while Green remains in Jail without bail.
More celebrity gossip on IrishCentral
Irish tsunami 'quite possible' warns experts after earthquake
US Census reveals important new information on Irish Americans
Although they were arrested earlier this month the information was not made public so a larger investigation into the car theft ring was not compromised.
Speaking last year, John - who is also a qualified pilot - admitted he was glad it was not his private jet that got stolen instead.
He joked: "I was looking for Jaguars, and it was a beautiful, spotless dealership and I left it parked on the side.
"And eight to 10 minutes later, my car was gone. And it's like that movie, 'Gone in 60 Seconds', like, who can explain it?
"But at least it wasn't a jet, though that might be easier to find."