Walking around as an inno, and a T tries me. I put him down and quickly ID his body, but an oblivious inno walks up unaware of what happened and puts one in the back of my head. To me this would be rdm, as I killed and IDed a T in a timely manner. Some staff have slain the one who killed me on this type of occasion. Others have not. Id like a general consensus for future reference in case there is any deviation.
Look at it from the perspective of the person who shot you. What he sees may not be what you see. He is just walking around, and all of a sudden sees you shooting at a guy, so his first reaction would naturally be to shoot you. Even if you identify the body, they may not notice in time and keep shooting. However if enough time passes by you identifying the body before you get killed, then it should be slayable.
The 5 second time frame is what staff should follow. So, if you ID'd him and 5 seconds past, then the guy shoots you, then it would be RDM.