Matthew Riehl, the man accused of killing a suburban Denver sheriff’s deputy and wounding four others, is a veteran of the Iraq War who is also fond of posting alt-right memes on his Facebook account.

Forbes writer J.J. MacNab discovered Riehl’s Facebook page, in which he identifies himself as “Matt Gonzo,” and where he has posted multiple memes featuring Pepe the Frog, the cartoon that has been appropriated as a symbol for white nationalists.

ADVERTISEMENT

Other of Riehl’s Facebook posts include calling former President Barack Obama a “lying piece of sh*t” and shared posts from alt-right website Breitbart News.

As the Associated Press has reported, Riehl seemed to have a grudge against local police officers, and posted multiple complaints about the Douglas County Sheriff’s Department on YouTube.

Specifically, the AP notes that Riehl in a December video called for “the firing of Douglas County Sheriff Tony Spurlock” and attacked him “in highly personal terms.” Riehl also said that during that video that he would be running as a “libertarian” candidate for Douglas County Sheriff.