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(FILES)This undated file selfie photo sourced on social network on January 31, 2017 shows Alexandre Bissonnette, a Canadian political science student known to have nationalist sympathies who was charged with six counts of murder over a shooting spree at a Quebec mosque -- one of the worst attacks ever to target Muslims in a western country. A white supremacist on trial for the 2017 attack on a Quebec mosque pleaded guilty on March 28, 2018 to the killing of six worshipers and six other charges of attempted murder. Alexandre Bissonnette, 28, who had initially pleaded not guilty, changed his plea to guilty after passing a court-ordered psychiatric assessment earlier in the week. / AFP PHOTO / HANDOUT / - / ----IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE----- / GETTYOUT