I was talking to a mate who's just been trekking out that way and apparantly it's quite commonplace but the kidnappers on the whole are very civilised, as they want to make money without damaging the tourist trade to much! Having said this, there have been some gnarly deaths, not to mention the people who only escaped by pushing their captors off the side of a fuck-off cliff - nice.
I think the general consensus is that the rebels were in for a hard time, as he's got the reputation of being a bit of a hard-cunt himself. Last I heard, he'd escaped but his poor wife was still up on the hill - that's chivalry for ya!
Here he is after his ordeal: