Highland Park shooter had come to police attention for previous violence
Robert E. Crimo III managed to bypass the "red flag" law that is designed to prevent people with violent tendencies from getting guns.
Robert (Bob) E. Crimo III, a person of interest in the mass shooting that took place at a Fourth of July parade route in the wealthy Chicago suburb of Highland Park, Illinois, US is seen in this still image obtained from a social media video.(photo credit: ROBERT CRIMO/VIA REUTERS)ByREUTERS
