Being in the server my self at the said time I can assure everyone that killer was not RDMing I did in fact have a front row view of the mayor caused bloodbath (made me a couple bucks in gun sales!) and did not see killer247 at all, having said this I didn't actually see killer873/837. Lesson to others -- If the mayor says server restart mass RDM and purge, you probably shouldn't. As for killer even if he did RDM (which I don't believe he did) isn't a permanent a tad far fetched, I got three days for actually RDMing at spawn as well (not encouraging RDM and I did learn my lesson from my ban- shouldn't we give others the chance to do the same).
Stay classy,
Oscar