(Chicago, IL) — A Chicago Aviation police officer says they used as little force as he could to get a Louisville doctor off a United Airlines flight earlier this month. Still, Dr. David Dao ended up bloodied and with what he says is a concussion. Officer Mauricio Rodriguez Jr. wrote in his report about the incident, which was released yesterday, that Dao reacted violently to requests to get off the plane. Two other officers were suspended for their actions on the flight.