Someone once told me that whenever hostages are taken you have to count them as dead. Their well being can have no part in the next moves that you make. It is hard. Beyond hard. But that is the way it must be or you are setting things up for most hostages to be taken. In the words of J. Paul Getty, “If I pay one penny now, I’ll have 14 kidnapped grandchildren.”
If you manage to save any of the hostages that might happen to be alive, bonus. But don't count on it.