Man incompetent to stand, trial in impersonation at I-40 Bridge Collapse (My Title) By Donna Hales Phoenix Staff Writer A man arrested for posing as an Army officer and taking control of riverfront operations after the May 26 collapse of the In terstate 40 bridge near Webbers Falls is not competent to stand trial, according to sealed federal medical reports. William J. "Billy" Clark was ordered back to a federal medical facility for psychiatric treatment Tuesday during what was to have been his competency hearing in Muskogee federal court before U.S. District Judge James H. Payne. "He thinks he's Capt....