We now know the identity of the man who managed to scale the fortified fences of Charlie Sheen's mansion in Sherman Oaks, CA. overnight --  he's David Pack, 26, from Kansas City, Kansas.

EXCLUSIVE POLICE DOCUMENT: Read David Pack's Booking Report

According to his booking report -- obtained exclusively by Breaking Celebrity News -- Pack, who's 5'10" and weighs 145 lbs, is being held in Van Nuys jail under $1,000 bail.