For some reason admin log saves deaths randomly. I chacked and doublechecked.
Sometimes player killing other is saved. Mostly not.
May be logs must contin any death? Death from bloodloss etc. Just a fact of player death. And keep offender if applicable.
Example
13:50:43 | Player "XXXXX"(id=XXXXX) died. Killed by player "XXXX"(id=XXXX)
13:50:43 | Player "XXX"(id=XXXXXX) died.
(e.g. of bloodloss or fell from height etc. )