The United Airlines passenger who was videotaped being bloodied and dragged off an overbooked plane by airport police signaled Wednesday he would fight back in court.
David Dao filed an emergency "bill of discovery" against the carrier in Illinois State Court demanding that evidence documenting Sunday's "re-accommodation" aboard a Kentucky-bound plane be "preserved and protected."
That includes all surveillance videos, cockpit voice recordings, passenger and crew lists, incident reports and other items.
Dao "currently has no access to them and believes that serious prejudice" will befall his case if the items are not safeguarded, the court papers state.
A 69-year-old doctor, Dao was one of four people who was randomly selected to get off the oversold plane just before it was supposed to take off Sunday from O'Hare International Airport for Louisville, in order to make room for United flight crew members who needed to get to an assignment.
When Dao refused, United sent in Chicago Aviation police officers to remove him from the plane and the resulting
While United honcho Oscar Munoz apologized in a public statement Monday — saying they had to "re-accommodate" Dao — in an internal letter seen by NBC News he accused the doctor of being "disruptive and belligerent."