(Portland, OR) -- A 24-year-old man is facing charges after allegedly burglarizing a construction site in Lake Oswego. Police arrested Rosendo Sanchez-Martinez early yesterday morning after he allegedly tripped an alarm at "The Springs at Lake Oswego" on Kruse Way Place. Police say officers found him hiding under a bus, where he had allegedly hidden a pistol. Police say a second suspect at the scene got away. Investigators believe the two were after copper wiring.