The Russians used fentanyl. Worked like a champ. But they blew it with the people they rescued by having a terribly substandard emergency medical response. People dragged out were just laid out and simply vomited and aspirated. Great idea but weak on the critical following details.
Better to just create a diversion of some sort psychologically and kill him before he knows what happened. But the FBI will want to talk to him ABC take him alive so they can supposedly talk to him. In truth they are terrified to shoot a moslem.
I think the Russians killed half the people they were trying to rescue. There really wasn’t anything they could have done.