He had been in Iraq for seven months when he was first handed the photographs on a CD. It was lent to him by a colleague, Charles Graner. Most of the disc contained general shots around Hilla and Baghdad, but also those infamous photos of abuse.
At first he did not quite believe what he was looking at.
"The first picture I saw, I laughed - because one, it's just a pyramid of naked people - I didn't know it was Iraqi prisoners," he says.
"Because I have seen soldiers do some really stupid things. As I got into the photos more I realised what they were.
"There were photos of Graner beating three prisoners in a group. There was a picture of a naked male Iraqi standing with a bag over his head, holding the head, the sandbagged head of a male Iraqi kneeling between his legs. The most pronounced woman in the photographs was Lyndie England, and she was leading prisoners around on a leash. She was giving a thumbs-up and standing behind the pyramid, you know with the thumbs-up, standing next to Graner. Posing with one of the Iraqi prisoners who had died."