Why would they kill him if they took seriously his claims that he'd hidden bombs? They would want to know where he had hidden them. Fears of a remote detonator

Why would they kill him if they took seriously his claims that he'd hidden bombs? They would want to know where he had hidden them. Fears of a remote detonator are not a real excuse either, he could could just as easily have a dead-man switch that detonates the bombs when he releases a trigger.