Following the explosion pandemonium broke out among the remaining gunmen; shouting obscenities, they opened fire on the dazed band members, who had all been blown down into the field below the level of the road from the force of the blast. According to Martin Dillon, the order to shoot was given by the patrol's apparent leader, James McDowell, to eliminate witnesses to the bogus checkpoint and subsequent bombing. Three of the musicians were killed: lead singer Fran O'Toole, trumpeter Brian McCoy, and guitarist Tony Geraghty.