laughing dog
Contributor
From the linked article in the OPThe article did give the reason "“Walking with a purpose”. And the victim was unarmed, so there is no way he could have shot at anyone. So, either come up with a link with information that confirms your "thoughts", or stop confusing your conjectures with reality.
I think you're confusing the situation. The article says he was running away.
Bollinger was not running away when he was killed. Bollinger was not armed when he was killed. No one reported Bollinger shooting at anyone.He was stopped on Merle Hay Road. Officers say Bolinger then got out of his car and approached Miller’s patrol car “Walking with a purpose”, so she opened fire through the window of her closed car door, striking Bolinger in the torso.
Please try to acquaint yourself with the contents of OP articles.

