The Four Things America Needs To Know About The Police Shooting In Tulsa Oklahoma

1. Robert Bates, a white reserve deputy in Tulsa County, Oklahoma, shot and killed Eric Harris, an unarmed black man, during an April 2 sting operation after Harris was pinned down to the floor by multiple officers.
2. In video footage released Friday, it appears Bates meant to use his stun gun on Harris, warning deputies that he was going to use his Taser before firing a shot from his actual gun. Immediately after firing, he shouted: "I shot him! I'm sorry!"
3. The footage was taken after a sting operation, in which officers caught Harris, illegally selling guns, NBC News and CNN reported.
4. The shooting follows several police killings over the past year, including the deaths of Michael Brown in Ferguson, Missouri, and Eric Garner in New York City, that led to nationwide protests over racial disparities in police use of force and the criminal justice system.

Bates said he was going to use his Taser — but then fired a shot