Who is Zacarias Moussaoui?

"The only person convicted in the United States in connection with the Sept. 11 terrorist attacks is suing President Donald Trump over conditions at a federal prison, where he alleges he experiences “psychological torture” while kept in total isolation."
https://amuedge.com/?s=911+conspirator+sues+trump+claims+psychological+torture

"A 9/11 conspirator sued President Donald Trump, former New York City Mayor Rudy Giuliani and Attorney General Bill Barr in a series of lawsuits alleging they were trying to cover up who is actually responsible for the terrorist attacks, the Denver Post reported."
https://dailycaller.com/2020/10/05/9-11-conspirator-sues-president-trump-alledging-cover-up-terrorist-attack/

"According to the report, Zacarias Moussaoui filed "20 handwritten, rambling petitions" in the US District Court for the District of Colorado, claiming that Trump, former New York City Mayor Rudy Giuliani, US Attorney General William Barr and over a dozen others are trying to "silence" him and "cover up" his information about those who are allegedly behind the attacks"
https://sputniknews.com/us/202010061080678186-convicted-911-conspirator-sues-trump-administration-for-alleged-cover-up-report-says/

"Among other things, Moussaoui's petitions seek an end to prison guidelines that he says "keep me in total isolation without access to a lawyer to break me psychologically..." Moussaoui, who describes himself as a "slave of Allay" and the "so call 20th hijacker" in the petitions, also seeks the assistance of various civilian and military judicial officials and claims that he has been assaulted while in federal custody."
https://www.foxnews.com/us/9-11-conspirator-sues-trump-claims-psychological-torture

9/11 conspirator sues Trump, claims ‘psychological torture’
https://www.breitbart.com/news/911-conspirator-sues-trump-claims-psychological-torture/