A "ginger extremist" who fantasised about shooting the Prince of Wales so Harry could be king has been detained indefinitely under the Mental Health Act for plotting a terror attack "for the Aryan people".
Mark Colborne, 37, likened himself to Norwegian far-right terrorist Anders Breivik and made notes in his diary of his plan to assassinate Charles with a high-powered sniper rifle.
He bought the ingredients for deadly poison cyanide over the internet, and stockpiled dust masks, metal filter funnels, plastic syringes and latex gloves, jurors were told.
Colborne was caught after his half brother uncovered chemicals and papers detailing his racial hatred stashed in his bedroom at the family home in Southampton.
Following a retrial at the Old Bailey, he was found guilty by a majority of preparing terrorist acts before his arrest on June 3 last year.
Sentencing, Judge John Bevan QC described Colborne as an extraordinarily "warped individual" whose "extravagant self-pity" had made his own life and that of his family a "misery".
He said: "You have been consumed with rage at disparate individuals and groups and you write in graphic terms of bombing and butchery.
"You are, I regret to say, a warped individual who in the past has held views of your fellow man which were repugnant to right-thinking people."