David Dao, the passenger forcibly removed from a United Airlines flight earlier this week, has filed a lawsuit against the airline, according to a filing listed on the Cook County Clerk of Circuit Court website.
But if the passenger posed no threat and was not being disruptive, officers nearly certainly could have tried an approach other than dragging him out of his seat and down the aisle, including simply telling the airline to resolve the situation itself, experts said.
Munoz repeated his apology to David Dao, his family and the other passengers who witnessed him being taken off the flight.
He said he had not spoken to Mr Dao but added: "I do look forward to a time when I can, as much as I'm able to, apologise directly to him for what has happened".
Munoz vowed this "will never happen again on a United flight" and that law enforcement won't be involved in future.
Lawyers for the passenger, identified as Dr. David Dao, have filed papers with the IL state court requesting that United Airlines and the City of Chicago, which operates the airport, preserve all documents and evidence related to flight 3411, including cockpit voice recordings, passenger manifests, crew lists, video recordings and any other materials related to the flight, in which their client was forcibly removed by airport law enforcement officials and injured while being dragged down the aisle.
Attorneys for Dao filed court papers Wednesday asking the airline and the city of Chicago to preserve evidence in the case.
Passenger Jayse Anspach told CNN that Dao and his wife initially agreed to take a later flight, but recanted upon learning that that flight wouldn't take off till Monday morning. Video shot by passengers showing the man's bloodied face went viral on social media, prompting a storm of protest.
Officers could have asked themselves whether the airline had an option to reconsider its actions, said Chuck Wexler, executive director of the Police Executive Research Forum, a group that has called for greater restraint from police officers. "No one should ever be mistreated this way". United was trying to find seats for four employees, meaning four passengers had to deplane.
No passengers on the plane have mentioned that Dao did anything but refuse to leave the plane when he was ordered to do so.
The passenger was identified as Dao, a 69-year-old physician from Elizabethtown, Kentucky. The company has since offered refunds to all passengers on that flight. He refused to leave. The incident was captured on video by several passengers on the flight.
He was the only passenger removed from the plane, who was later permitted to board again.
The City of Chicago runs O'Hare International Airport.