” So now he had 50 rounds? That would have been enough to murder everybody on that floor most likely “
It’s kinda unclear from the reporting, but my impression is that he had two full mags *plus* 50 loose rounds - and I’m not sure how much use the loose rounds would have been, since the whole building could have been evacuated (and probably stormed by the police and neutralized) while this guy was sitting down reloading magazines....
Take one hostage. Force her to reload.