One of the most recognisable figures from the January 6 attack was Jacob Chansley, whose horned headdress and face paint earned him the nickname “QAnon shaman”.

Chansley was a supporter of the QAnon conspiracy theory, which posits that an anonymous figure named Q has secret information about a deep-state “cabal” inside the US government.

Photographed standing atop the Senate rostrum during the January 6 attack, Chansley was ultimately sentenced to 41 months in prison.

His sentence matched that of another participant, ex-mixed martial artist Scott Fairlamb, who was captured on film punching a police officer.

Prison officials have since diagnosed Chansley with transient schizophrenia, bipolar disorder, depression and anxiety. Chansley had hoped that Trump would pardon him for his actions.