Alan Jacobson is the national bestselling author of six thrillers, the latter four featuring FBI profiler Karen Vail. Jacobson did seven years of intensive research with members of the elite FBI Behavioral Analysis Unit. His latest release is Inmate 1577, set on Alcatraz Island. Mark Safarik is a former Senior FBI profiler and Supervisory Special Agent. His law enforcement career spans 30 years, the latter 12 with the FBIs Behavioral Analysis Unit; Safarik is currently executive director of Forensic Behavioral Services International and will be starring in NBCs new Cloo network series, Killer Instinct.