I think the picture was taken by a bystander, not one of his pee-pals.
My take is that the guy is still shading the truth a bit - he says that he was so intoxicated that he has no recollection of peeing on the memorial, but a bit later he says that he remembers thinking that it was just a simple rock. I'd say (especially after seeing the picture) that he knew at the time that it was something other than a rock, but he was drunk enough to think it was funny to pee on it.
Still, he's facing his punishment and apologizing (whether on advice of attorney or not), so it seems fair to me to give him his lumps and move on...
There were THREE people who urinated on the National War Memorial. Only ONE has admitted to being drunk. The other two are MINORS. who may or may not have been drunk. One of the minors said he thought the monument was a rock.
Some Canadians think the government is at fault because, unlike our tomb of the unknown soldier, the relatively new National War Memorial (which includes a tomb of the unknown soldier) isn't guarded. The previous Liberal government thought it would look too militaristic if it were.
Those are two different guys.