To begin you literally just admitted it was RDM. Also you never killed him "out of RP".
But to the point, you killed the Vice President in the open, Ronin saw you and followed you to your base. He never entered your base and you never warned him to back up. You then shot him without adverting anything which is RDM plain and simple. EMS then revived him and he called 911, you were inside your base which is made of thick brick walls and you "heard him call 911" and you ran out and killed him again.