The initial reports revealed that a man whose age is not known was suffering from a harmless and non-threatening gunshot injury on his leg. Officials said at about 12:52 a.m., a Des Plaines officer who was responsible for patrolling the parking lot of the casino was randomly flagged down by an individual requesting an ambulance. Something almost tragic happened at the parking lot of Rivers Casino on the morning of 4th November (Saturday), as per the police.