According to ABC News –
Police said in a news release that Officer Betty Shelby fired the shot that killed Terrence Crutcher on Friday and that she is on paid leave pending an investigation of the shooting. Officer Tyler Turnbough fired a stun gun at Crutcher, who died at a hospital following the shooting. It’s unclear whether Turnbough remains on active duty.
To simply shoot a person for not putting their arms up is a cowardly act.
Though all the circumstances have not been made available, truly an investigation should been warranted to the highest degree.