HIGHLAND PARK, Ill. (AP) — The man charged with killing seven people when he unleashed a hail of bullets on an Independence Day parade from a rooftop was expected in court Wednesday. Authorities are facing questions about how he was allowed to buy several guns, despite threatening violence. Robert E. Crimo III was charged with seven counts of murder Tuesday in the shooting that sent hundreds of marchers, parents and children fleeing in fear and set off an hourslong manhunt in and around a Chicago suburb. Investigators have yet to identify a motive. Prosecutors have promised to seek dozens more charges, and Crimo is expected to make his first court appearance on Wednesday. His attorney said he intends to enter a not guilty plea to all charges.