Can not find anywhere that said 34 hostages killed. Does sound like the Algerians acted preciptously.
Gotta love the name Battalion of Blood.
ANI and Qatar-based Al Jazeera reported that 34 of the captives and 15 of their captors had been killed when government forces fired from helicopters at a vehicle. Those death tolls, far higher than confirmed by the local source, would contradict the reports that large numbers of foreigners escaped alive.
From the article I linked. Seemingly, absolutely nobody knows what the hell happened, the more I read reports.