Police video shows killing of black Oklahoma suspect

In this screen shot from April 2, 2015 video provided by the Tulsa County Sheriff's Office, police restrain 44-year-old Eric Harris after he was chased down and tackled by a Tulsa County Deputy, and then shot by a reserve sheriff's deputy while in custody, in Tulsa, Okla. The sheriff's office said 73-year-old reserve deputy Robert Charles Bates fired the shot that killed Harris, believing he was using his stun gun instead of his service weapon when he opened fire. (AP Photo/Tulsa County Sheriff's Office)
In this screen shot from April 2, 2015 video provided by the Tulsa County Sheriff's Office, police restrain 44-year-old Eric Harris after he was chased down and tackled by a Tulsa County Deputy, and then shot by a reserve sheriff's deputy while in custody, in Tulsa, Okla. The sheriff's office said 73-year-old reserve deputy Robert Charles Bates fired the shot that killed Harris, believing he was using his stun gun instead of his service weapon when he opened fire. (AP Photo/Tulsa County Sheriff's Office)
In this screen shot from April 2, 2015 video provided by the Tulsa County Sheriff’s Office, police restrain 44-year-old Eric Harris after he was chased down and tackled by a Tulsa County Deputy, and then shot by a reserve sheriff’s deputy while in custody, in Tulsa, Okla. The sheriff’s office said 73-year-old reserve deputy Robert Charles Bates fired the shot that killed Harris, believing he was using his stun gun instead of his service weapon when he opened fire. (AP Photo/Tulsa County Sheriff’s Office)

TULSA, Okla. (AP) — Police say a white reserve sheriff’s deputy thought he was holding a stun gun, not his handgun, when he fatally shot a black suspect during an arrest that was caught on video in Tulsa, Oklahoma.

The video of the April 2 incident shows a Tulsa County deputy chase and tackle Eric Harris, 44, whom they accuse of trying to sell an illegal gun to an undercover officer.

While the deputy subdues Harris on the ground, a gunshot rings out and a man says, “Oh, I shot him. I’m sorry.”

Authorities have identified the shooter as 73-year-old reserve deputy Robert Bates and say he meant to use his stun gun.

The video was released over the weekend at the request of Harris’ family. They have not commented since its release.