Mardi Link, author of the new prologue, is the author of two regionally best-selling true crime books based in northern Michigan, When Evil Came to Good Hart and Isadore's Secret.
Laura James, author of the new epilogue, is a trial lawyer, crime historian, and true crime author who blogs about the true crime genre at her Web site CLEWS (www.laurajames.com).
Edward Keyes, now deceased, spent several years in the early 1970s investigating the Michigan murders. He authored the works Double Dare and Cocoanut Grove. He is also the co-author of the bestselling thriller The French Connection, which was adapted into an Academy Award–winning film of the same name. The Michigan Murders was a finalist for the Edgar Allan Poe Award for Best Fact Crime in 1977.