Members of the FBI’s evidence response team organize one day after a mass shooting in downtown Highland Park, Ill. Tuesday, July 5, 2022. A shooter fired on an Independence Day parade from a rooftop spraying the crowd with gunshots initially mistaken for fireworks before hundreds of panicked revelers of all ages fled in terror. (AP Photo/ Charles Rex Arbogast)
By Michael Tarm, Kathleen Foody and Roger Schneider Associated Press HIGHLAND PARK, Ill. (AP) — FBI agents peeked into trash cans and under picnic blankets…
