Reader's Favorite True Crime 2022, The Evil I Have Seen is a collection of six murder cases that haunt the memories of retired Detective Lt. Robert (Robbo) Davidson. Awakened night after night by the ghost of some murder victims hovering in the darkness over his bed, denying him sleep, Robbo resolves to tell their stories. To lend these victims a voice, for better or worse. "I think if I do not, the evil I have seen may never let me sleep," the detective writes. Each story is based on his actual case files as a deputy for the DeSoto Parish Sheriff's Department between 1981 and 2014. These stories were compiled by combining Robbo's memories with witness statements, trial transcripts, and interviews with the people involved. Robbo even traveled to Louisiana prisons, interviewing men he helped convict, to elicit their memories of the crimes.