Don't lure the killer rabbit off a cliff though he will never show up again. I stood down a slope as he was slaughtering me 5 times in a row. Well he came down that slope after me and just kept sliding and off the cliff and into the river.
He never respawned again.
By the way he appeared towards the bandit camp for me right down from the bridge where the guy goes to drink his booze after you give it to him so the couple with the pregnant woman can escape.
I've seen reference to the killer rabbit in the Orobas fjords as well in some book or note by a guard in the harbor. Something about some guy that liked kicking rabbits and he was found ripped apart and some bloody white fur around him or something close to that.
Have not found him the fjords yet though, was hoping he respawned in there but no such luck.
Heck at level 33 I'll probably just kill him with my looks now.
I do know I should have never leveled this high though, I'm in my bra and panties with no jewelry and just fought Raze in his fortress and he only got me down maybe 100 hitpoints and I took him out one skill point bare fisted with my little girly punches.
Well at least my dragon still gets slaughtered in fights, that's the only time I get killed now.