Sign of hacking?

[Reapin]

Ok so there is this mob that runs on a timer. Very consistently. You kill it and exactly after a certain amount of time (lets say 4 hrs)it re-spawns. At least 6 times now I have killed this mob at random times and always the same person shows up just a couple minutes before it re-pops the next time or a couple kills after that. Always.

When I killed this mob I was the only one in the zone so no one, i mean NO ONE could possibly know the exact time it would re-spawn. Are there hacks allowing this kind of knowledge or is this person just a psychic SOB?

No funny business ever happens, no KSing or training or anything of the sort, just a really super accurate timing that blows my mind. I have been spending a lot of time in this zone maxing out some tradeskills and have seen many people come and go, but this one person...seems wrong to me.