Jane Hamsher (born Jane Murphy; July 25, 1959) is a US film producer, author, and blogger best known as the author of Killer Instinct, a memoir about co-producing the 1994 movie Natural Born Killers with Don Murphy and others, and as the founder and publisher of the politically progressive blog FireDogLake (2004 – 2015). With Murphy, she also co-produced the subsequent films Apt Pupil (1998), Permanent Midnight (1998), and From Hell (2001). A contributor to The Huffington Post, she posts also in websites and political magazines, such as AlterNet and The American Prospect.