I noticed the description of the young man's clothes match those he was wearing in the photo.
It does kind of look like this photo is from either a surveillance camera or a cell phone.
I have an unpleasant feeling that this photo was taken immediately before this young man's death by suicide. To me it appears the man is sitting on a railing or guardrail that is at a height, maybe on a bridge. Sharonuk said this looks like the Jacques Cartier Bridge.
I agree with cocomod, this picture is odd. There is something about the look on this young man's face that makes me feel he is about to take his own life.
I know that's a lot to read into a very blurry picture, but it's more of an impression I get rather than something specific I can point to.
Sorry if this is a little gruesome, I hope I'm wrong about the suicide.