A man who shot dead a sheriffs deputy in Denver and wounded four others early Sunday posted alt-right content to his Facebook account.
Matthew Riehl, 37, was killed in a shootout with law enforcement after barricading himself inside his apartment and opening fire on five deputies and two bystanders. The authorities had been responding to a noise complaint at the suburban apartment building last weekend.
Right-wing extremism expert and Forbes writer J.J. MacNab uncovered Riehls Facebook page Monday. It has since been removed from the social media platform.
The page contained images of Pepe the Frog, a character that has been adopted as a mascot by the alt-right, a loose knit group of nationalists, white supremacists, misogynists and conspiracy theorists. The movement was behind the white supremacist rally in Charlottesville, Virginia, last August that left one person dead and several seriously injured.
The alt-right gained attention during the 2016 election campaign for its fervent support of Donald Trump.
On his Facebook page, Riehl also posted articles from Breitbart News, which the outlets executive chairman, former White House chief strategist Steve Bannon, has called a platform for the alt-right.