[driftdiver]

Enough gas to put him to sleep would kill the boy.

[MeneMeneTekelUpharsin]

Enough gas to put him to sleep would kill the boy.

Correct. Believe it or not, but just leaving him alone with 4-5 folks for around-the-clock surveillance would probably be the most appropriate course of action to take. If he comes out, let him move about. Where is he going to go? I guarantee you he has no desire to go anywhere else but his property.

He'll have to do something about water, food, sewage, etc. and will have to come out. He's going to start having some feelings of remorse, if it doesn't already. Sooner or later, he's going to have to let the little boy go outside and will probably decide to just let him go. No need for a entire army there. They really want this guy alive to see what makes him tick, because there are many others just like him.

[the OlLine Rebel]

Is that really true of all gases?

How about enough to put the boy to sleep and disorient the man?

[jonrick46]

If just enough gas was induced to put Dykes in a deeper sleep; that incapacitated him enough that he would be unable to respond to a rescue, that might work. I would also use that time to drop down a surveillance camera to take a look at the inside of the bunker.