The drawings that are seen hanging in Richard Ramirez's cell in the film were actual drawings done by Ramirez, that were originally sent to his personal acquaintance: Dillon Kroe.
Real-life 'Night Stalker' murderer Richard Ramirez died on June 7, 2013 at age 53, still a prisoner on death row at California's San Quentin State Prison.
Richard Ramirez often got fan mail while in prison, especially from women who claimed to fall for him. He sometimes wrote back.
Kit stays in room number 206 at her hotel. Writer-director Megan Griffiths is based in Seattle, and 206 is the telephone area code for Seattle. The room number is an in-joke meant for the Seattle film community.