"In Paris attack, nurse discovers the man he tried to save was bomber"

"In the chaos of the explosion at the Comptoir Voltaire cafe, one of several targets hit in the Nov. 13 Paris attacks, nurse David instinctively sought to help the wounded."

Among them was a man lying amid overturned chairs and tables...

When he tore open the man's t-shirt, David quickly realized that what he initially thought was a gas explosion at the cafe close to the Bataclan music hall where gunmen killed 89, was actually something far worse.

"There were wires; one white, one black, one red and one orange. Four different colors," he told Reuters. "I knew then he was a suicide bomber."...

"The first wire I saw was red. I think that was the detonator," David said. "There was something at the end."

As soon as he realized the person he was trying to save had just tried to kill him, David says the fire services arrived. Among them was a fireman he knew. He told him what he had just seen. "He looked at me and started shouting for everyone to evacuate," he said.