I just don't understand.......

I wasn't going to chime in but couldn't watch and not play any more. When I got out of the army I went to the police academy and was on the force. Second day on the job pull over a dwi offender. He gets crazy slaps my training officer so I snot locked him and drug his face across the black top I thought this was a good thing. Well it was good I got the fella off my training officer but I was told that I went to far with force. I figured right there this was not the job for me cuz I would hurt some one or get hurt my self. Could these matters ended with a better result yes but we are not that person and don't know the level of fear he faced. Do I agree with him shooting not really this is why they made pepper spray and taz ers but if the shooting is justified so be it