In July 4 US parade shooting, gunman fired over 70 rounds, says police Investigators who have interrogated the suspect and reviewed his social media posts have not determined a motive for the attack or found any indication that he targeted anyone by race, religion or other protected status, Covelli said.The gunman who attacked an Independence Day parade in suburban Chicago fired more than 70 rounds with an AR-15-style gun that killed at least seven people, then evaded initial capture by dressing as a woman and blending into the fleeing crowd, police said Tuesday.

A spokesman for the Lake County Major Crime Task Force told a news conference that the suspected shooter, who was arrested late Monday, used a high-powered rifle “similar to an AR-15" to spray bullets from atop a commercial building into a crowd that had gathered for the parade in Highland Park, a close-knit community on the shores of Lake Michigan that has long drawn the rich and sometimes famous.

More than 30 people were wounded in the attack, including one who died Tuesday, task force spokesman Christopher Covelli said