Witnesses describe a brazen shooting in broad daylight.
A 29-year-old man is in critical condition at Northwestern Memorial Hospital after being shot in the head on the State Street bridge.
An unidentified suspect reportedly shot the man and fled, according to Chicago Police News Affairs. Police are looking for the shooter but a spokesman said at a news conference that they do not believe it was random.
Police said the victim, Todd Brown, was walking north across the bridge on his way to work when another man approached and shot him.
He was able to speak with detectives from his hospital bed, according to police. His mother said Tuesday that it's nothing short of a miracle that her son is even alive.
"It’s a miracle. It's a blessing from God that he is not dead," Mildred Gooden told the Chicago Sun-Times. "I am really grateful for that."
Police confirm that the gunman ran south on the bridge after firing the gun, and east on Wacker.
Witness Sammeiso Lewis had a different account, saying he saw two men walking side by side, seemingly having a normal conversation, when one man took out a gun and shot the other in the head and ran away.
Another witness, Gary Reidy, was dining in the nearby Smith and Wollensky steakhouse when he said he heard a pop and saw a man fleeing.
"I heard a noise that sounded like a car back firing and saw a gentleman running south on State Street in a white T-shirt," Reidy said. "Then somebody said 'somebody's been shot.'"
Police closed the State Street bridge over the Chicago River, and blocked off Wacker and Kinzie during the search for the shooter, but an official description was not released.
Witnesses said they heard a single gunshot and saw a man wearing light blue pants and a white shirt fleeing the scene.
Police plan to review video from numerous cameras in the area.