After receiving a BA from Connecticut College in 1989, Warren Cohen joined the research staff of Common Cause magazine. He became a researcher for U.S. News and World Report in 1990 and later reported on regional issues for that publication. Cohen worked for U.S News until 2000, when he became a senior news producer for the VH1 cable network. He co-wrote 23 Days of Terror, which depicts the Washington, D.C. sniper shootings, with fellow U.S. News writer Angie Cannon.