You were indeed banned by me for DM. Just before the ban I warned you for DM, which is the punishment you considered to be unfair. If I remember correctly, you came up to me after a few minutes and started shooting me directly, just because you were mad. This is of-course no way to solve the problem. I hope you understand that such actions should not be repeated. Might such a situation occur in the future, then walk away, calm down and then review the situation again. Admins have no problem explaining you the full reason behind a punishment, but you have to stay calm.