Russakoff, Dale, Amy Goldstein, and Joel Achenbach. “Shooters’ Neighbors Had Little Hint.” Washington Post, May 2, 1999.
• Simpson, Kevin, and Jason Blevins. “Mystery How Team Players Became Loners.” Denver Post, April 23, 1999.
• Simpson, Kevin, Patricia Callahan, and Peggy Lowe. “Life and Death of a Follower.” Denver Post, May 2, 1999.
• Wilgoren, Jodi, and Dirk Johnson. “The Suspects: Sketch of Killers; Contradictions and Confusion.” New York Times, Friday April 23, 1999.