It’s perfectly legal, unless he died then /back’d. If he is actually harassing, let’s say 6 kills (5 puts him automatically in jail) or more within a certain time frame. Your report suggests he killed him only twice within that time frame, did turseturtle die a lot more?

Aaaaaaactually…there was a (fairly) recent staff thingy confirming it is only ok for non-pvp purposes. Given that they  were on at the time, I’m sure @smokeyriver, @lawzoneon, and @lucky can confirm.