The logs told me you had griefed a house and I had to rollback the damage. Gonna check it again just to be sure.
EDIT: Alright, you only did small damage to the house, like a couple of holes and that's not something I usually ban for. You probably lit the house on fire too but unfortunately for you, fire doesn't really destroy anything. I'm gonna unban you for now. Altho if I find out you have griefed other houses or that you grief more then I'll ban you again and this time forever.
And yeah, killing ppl is allowed.