If he was killed in your base he had no reason to tp back, there's admin chat for a reason.
This is the 5th report abuse against him, if he doesn't get some sort of official warning if this is accepted then something is wrong.

His response to the situation doesn't help him either

If he was killed in your base he had no reason to tp back, there's admin chat for a reason. This is the 5th report abuse against him, if he doesn't get some sort of official warning if this is accepted then something is wrong. His response to the situation doesn't help him either