SPOILER ALERT
I was watching episode 827 where King Johnny and Istvan hold Magda at widow's hill about to kill her, and Barnabas arrives. Just to show King Johnny that he meant business, he put Istvan in a trance and makes him walk off widow's hill!! He ended up striking up a deal with King Johnny shortly after anyhow, so this murder seemed totally unnecessary. By the way, Johnny didn't seem to care one bit that his tribesman/traveling companion had just died, LOL..