A Florida surgeon accused of killing a patient on the operating table by removing his liver rather than his spleen was driving passengers for Lyft when he was arrested in a dramatic confrontation, video footage shows.

The body camera video, obtained by NBC News through a public records request for footage of the arrest, shows deputies with the Walton County Sheriff’s Office descending with their weapons drawn on a Mitsubishi sports utility vehicle driven by Dr. Thomas Shaknovsky on April 13.

Shaknovsky, 44, appeared confused as deputies pulled him from the car and handcuffed him at a busy intersection in Miramar Beach, Florida, the video shows. Over the wail of sirens, Shaknovsky informed the deputies that he had passengers in the back seat.

"May I ask what this is about?" Shaknovsky said. Once they had him in the back of a squad car, a deputy told him: It was for a manslaughter charge.

Dr. Thomas Shaknovsky during his arrest on April 13.…