Once outside, the explosives detonate, destroying J-5. A timer would then detonate the explosives a few seconds later. The explosives detonate and destroy the house, but the Collector gets away unharmed. The explosions were caused by detonators which failed to detonate the main explosive charge. As they fight the soldiers and Cohaagen, Quaid's explosives detonate. Its fuze had been damaged and the bomb did not detonate. The batteries would be connected to light bulb filaments that would detonate the bomb. Joker also threatens to detonate bombs across Gotham. Pentecost and Chuck then detonate the bomb, killing Scunner and mortally wounding Slattern. They all dare Thapar to detonate the bomb now. Villard tries to escape in the helicopter and the grenades detonate, killing him. But a priest is able to overhear a few men planning to detonate bombs. The attempt failed when the grenade did not detonate. These devices would detonate the bomb if it was moved in any way. He straps a bomb to his body which he intends to detonate among the marchers.