I found a MySpace page for Alexandre Bissonette... It appears genuine based on the dates I’ve seen (profile pic date Dec 2014). Not a lot to see there, only a couple of friends - I was able to find one of the friends, Jean-Philippe Cauchon, on Facebook. Photos of him wearing a kifaya along with at least one post mentioning the liberation of Palestine, and one picture, of all places, of Morocco.
https://myspace.com/alexandre.bissonnette6/connections/out
https://www.facebook.com/jeanphilippecauchon?lst=669082165%3A1192030357%3A1485797032
Sounds like a convert to Islam?