If the truck still has a license plate on it, even if it's expired, you might be able to backtrack ownership that way. If you've got a friend on the police force, sometimes they're more successful doing a plate check than a prvate citizen.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!