A Man Jumped Into My Car And Is Claiming I Hit Him

location: chicago,il

hello! i am posting here because i am genuinely unsure what to do to protect myself.

i was driving home last night during a rainstorm. i turned into the alley leaving a friends house. after leaving the alley, i come to the lighted intersection and indicate my left turn. i wait for all traffic to clear and see NO pedestrians. i begin my turn extremely slowly, because i was in heavy rain. as i’m almost done with my turn, all of a sudden a hand smacks my window and pushed my side mirror in.

i couldn’t see now, so i immediately pulled over and open my door. that’s when i see some man laying on the ground now yelling that i hit him and to call police.

i tried helping him up but he refused and kept saying i hit him. a woman stopped right behind me and tried to help, and he said he thought his finger was broken. he refused to get up. a man came and the man told him he thought he broke his leg. he refused to get up. another man comes and then the man gets up and walks with him. the whole time, he just keeps saying i had ran him over with my car.

i instructed the woman to call 911 as i was trying to help him up the first time. i then also dialed in and kept them on the line through the whole thing. there was a bus directly at the corner and i know those have cameras.

they gave me a ticket and said that i have to go to court and prove myself. they also said they spoke to witnesses, but everybody who had stopped left before they got there. what do i do? do i need a lawyer? the man walked into the side of my car out of nowhere, i did not hit him. i have court in may.