Hello I was the staff member that banned you in this situation!
The situation is pretty cut and dry, you approached two other people that were minding they're businesses,you started walking towards them and began punching the air,
The one guy pulled his gun out for a few seconds, put it away then started walking away, you approached him even closer, you then pulled out your gun quite some time after he put his gun away and shot him,
Both clips support this story,
Also you have multiple PO's for RDM,which were one of the reasons why your ban length is longer then It would be for someone who is a first offender.