When Ryan Stamm pulled into his driveway Thursday morning he noticed something strange — his roof was missing, and there was no work crew in sight. He was baffled because he had not hired a roofer, and his roof had not been damaged by recent hail storms like so many west Omaha homes. "I thought, ’Holy cow, what is going on,’ " Stamm said. His neighbors told him they had seen roofers on the Stamm property from 8 a.m. to 10:45 a.m. The neighbors were able to provide a description of the company’s van.