I agree that leaving a loved one would be a gut wrenching decision to make, however better one dead than many, assuming that death to all was imminent. If the chance of rescue exists later or if I and or others could get them out now that would be the best solution. No easy answer. Evaluate on a case by case basis, using all available resources to protect life. Remembering though, " We Do Not Trade Lives Ever..."
_________________________
Forever... A long time to be dead!
Staunch advocate of the First, Second, and Fourth Amendments