Billy Jensen is an American investigative journalist, author, producer, and podcaster. He is known for his work creating content in the true crime genre, including co-hosting the Discovery+ podcast and associated television special Unraveled: The Real Story of the Long Island Serial Killer,[1][2][3][4] and the podcasts The First Degree,[5] and Jensen & Holes: The Murder Squad.[6][7][8] He is also the author of the books Chase Darkness with Me: How One True Crime Writer Started Solving Murders,[7][9] and Killer Amidst Killers: Hunting Serial Killers Operating Under the Cloak of America's Opioid Epidemic.[10]