Disturbing video released by authorities Friday reveals the moments when an Oklahoma man was accidentally shot and killed by a deputy who meant to stun him with a Taser, according to the Tulsa County Sheriff"s Office.

On the morning of April 2, Reserve Deputy Robert Bates, 73, was assisting other deputies in taking suspect Eric Harris into custody. Harris, a known felon, was running from deputies after allegedly selling a gun to undercover cops.

Paramedics treated Harris at the scene, who was taken to a hospital, where he died about an hour later.