What war crime? There was an accusation of a war crime, followed by a trial, followed (in this particular case) by an acquittal. That's how we do things here in the civilized world.
The one shown in the photo.
WHOA! Let's back up,here! He MAY have been charged with comitting a war crime according to the internal laws on Canada,but he didn't commit a war crime according to international law,and as far as I know he wasn't accused of comitting a war crime. I suspect he was charged with something like the Canadian version of "Conduct unbecoming a soldier",or "Acts contrary to good order and disclipline". People can project that into a war crime if they want,but that doesn't make it so.