[1] Since 2015, Day has been the showrunner for numerous true crime television documentaries and series including The Shocking Truth, and Sex, Lies & Murder for Pyramid Productions.
[4] In 2019, he was the executive producer Oxygen's The Disappearance of Susan Cox Powell with Texas Crew Productions, called the "definitive story" of Susan's final years with "alarming new developments" and "scandalous" never-before-seen videos.
[5] In 2021, Day produced and directed the critically acclaimed series Fall River with Blumhouse on Epix.
[6] Critic Brian Tellerico wrote, “Epix's Fall River reminded me of how well these kind of long-form investigative journalism pieces can be done.” [7] James Buddy Day wrote to Charles Manson in 2016 and proposed creating a documentary to explore Manson's longstanding claim of innocence.
[14] The documentary featured Lynette "Squeaky" Fromme, Sandra "Blue" Good, Diane "Snake" Lake, and Catherine "Gypsy" Share.