By Graham Lee Brewer Staff Writer gbrewer@oklahoman.comThe driver of a utility truck that struck and caused the collapse of the May Avenue bridge over Northwest Expressway may have failed to properly lower his truck's boom, according to a police report. The driver, Matthew Alan Haney, told police that after delivering a piece of construction equipment to Penn Square Mall on May 19 he lowered the truck's boom basket before heading west on Northwest Expressway.Read more on NewsOK.com