'Just kill me': The moment bloodied United passenger mumbled about suicide after he was body-slammed by cops and dragged off overbooked flight to make room for airline STAFF
One Chicago Aviation Department security officer was put on leave on Monday
Chicago Police earlier said in a statement saying the passenger 'fell' into the seat
United CEO has apologized for the incident amid mounting anger
New video shows the man bleeding heavily from the mouth afer incident
The man was filmed screaming, then being knocked out by cops and dragged off the overbooked United flight at Chicago O'Hare on Sunday night
He was selected to give up his seat after no volunteers were found
Passengers had to give up their seats for United staff who were needed in Louisville, Kentucky
Passengers were offered $800 to take a flight the next day
The man claimed to be a doctor who had to see patients the next day