Certain Days: Freedom for Political Prisoners Calendar August 2018 art by Marius Mason. Mason is an anarchist, environmentalist, and animal rights activist serving nearly 22 years in federal prison for acts of property damage carried out in defense of the planet. He pleaded guilty in 2009 to arson at a university lab researching GMOs for Monsanto and admitted to 12 other acts of property damage. He is incarcerated in FMC Carswell in Fort Worth, Texas. Marius came out as transgender in 2014. He changed his name (though not yet legally), uses male pronouns, and in 2016 received a medical diagnosis allowing him to receive hormone therapy. (supportmariusmason.org). Image courtesy Certain Days.