I wasn't able to provo them onto each other (after a few tries I gave up in interest of survival) but a fellow rogue (thunter fellow) named The Warthog and I joined forces to vanquish these beasties.
Jack, I am sure the bread tasted good. Let's see if I can compete with that. Some fun with TnT @ Kos Heb Spawn --- Christmas came earlier this year. Looting Jake: Looting Velmi (I think): Third loot: Certainly, death is part of the art: After spawn heist @ delucia pass - people keep using beaten paths: PS - appropriate assessment afterwards (sry, no ingame shot taken...):
Gotcha! (Hey, after all he is just a scoundrel! And a very sneaky one too.) Result: 2200 gp and 10 black pearls.
That was one of MatrondeWinter's favorite people to go after (or at least s/he has gotten this guy quite a few times).