Where is Alan Johnston?

Reuters Photo

Palestinians know whereabouts of kidnapped BBC man: Abbas. 03/05/2007. ABC News Online

Agence France Press reported this week that kidnapped BBC reporter Alan Johnston is being held in Gaza and that the Palestinian authorities know where he is. Apparently they haven't launched a rescue operation because they are worried he'll be killed.
There's been no official or verifiable information about Alan since it was reported in mid-April that he was being held, or had already been killed by a little-known group called Tawheed & Jihad.