That would technically be a small form of metagaming. Depending on the circumstances, I would also possibly consider it karma-baiting, if someone says "I'm a T, kill me" and someone is gullible enough to kill them for it, and they are innocent.
Otherwise, Kuro/Whale are correct. There's no reason for you to do that really. Obviously there's certain cases where it may not apply: Such as them damaging you or accidentally RDMing someone else, but regardless you need to be ready to deal with someone not understanding that and seeing the fact you just killed someone.
Otherwise, Kuro/Whale are correct. There's no reason for you to do that really. Obviously there's certain cases where it may not apply: Such as them damaging you or accidentally RDMing someone else, but regardless you need to be ready to deal with someone not understanding that and seeing the fact you just killed someone.