Accepted.
I'll accept your apology, but I want to make a few things clear.
The other player did not violate NLR in this situation. In roleplay, if someone kills you, they are still allowed to continue interacting with you in the same RP scenario. It would only be considered breaking NLR if you, after dying, returned to interact with them again as if nothing happend.
Additionally, just because an RP situation does not go the way you want it to, that does not give you the right to leave the server, especially while cuffed or in an active roleplay scenario. This is a roleplay server and not every situation is meant to favor you or play out ideally. You're expected to stay and follow through, even when it's not going your way.