Pittsburgh police searching for driver who struck, toppled World War I memorial

Pittsburgh police are working to determine the truck driver responsible for knocking over a World War I memorial in the city's Troy Hill neighborhood early Sunday morning.Security camera footage captured a tractor-trailer trying to navigate out of a parking lot on Lowrie Street just before 4 a.m. Neighbors awoke to loud screeching as the driver struggled. "It was bleeding into my dream," said Josh Brower. "Sounded like somebody was stuck, and they were just revving their engine, trying to get unstuck."He and Maura Bittle looked outside their window and saw the driver spending at least five minutes trying to get onto one of Troy Hill's narrow streets. "They finally get unstuck, go through the grass over there, and hit the monument, and then fully topple it and just drive off down the street," Brower said. The video shows the trailer knocking over the monument while turning onto the street. "I was pretty beside myself," Bittle said. "I kind of was just like, 'Is this actually happening r