The video should be out in a few days.
This article https://www.theguardian.com/us-news/2016/sep/17/tulsa-oklahoma-police-shooting-suv portrays the police version.
The guy has no real criminal record. He was arrested for carrying a concealed weapon and resisting an officer, 20 years ago, but has never been arrested for commiting a crime.
"Carrying a concealed weapon" means he had a gun but no paperwork for it. A lot of people carry guns for protection and in some areas its hard to get a license.
"Resisting an officer" without any other criminal charge attached usually means a cop tried to force him to show some respect for his position and the guy was not interested. For a lot of cops, policing is about forcing others to respect them as individuals rather than to respect the law or some ethical code.
Tulsa is the same city where they used to let wealthy people play cop, and one old millionaire snuffed a guy accidentally not that long ago. He thought he was pointing his tazer at the guy but it was actually his gun
The guy had sold a cheap gun to a cop in a sting and tried to run but quickly got tackled. https://www.youtube.com/watch?v=Q9XlKDc-iEs