If your a t/detective could you kill the other t's or detective if its overtime to receive there credits or nah?
In short, no. The reason for being able to kill AFKs after overtime is that they may be a traitor delaying the round. If you are a traitor, killing your AFK traitor buddy is RDM. If you are a detective, killing your AFK detective buddy is RDM. The staff member(s) online will handle situations where you may not be able to yourself.
No. As a t, you can kill anyone who isn't on your team, including afks. As a detective or inno, you may not kill an afk detective.