Donnie Wahlberg
Self - Host
Casey Jordan
Self - Criminologist
Casey Jordan
Self - Criminologist & HLN Contributor
Joey Jackson
Self - CNN Legal Analyst
Joey Jackson
Self - CNN & HLN Legal Analyst
Joey Jackson
Self - Legal Analyst
Mary Ellen O'Toole
Self - Retired Senior FBI Profiler
Mary Ellen O'Toole
Self - Former FBI Profiler
James Gagliano
Self - Retired FBI Supervisory Special Agent
James Gagliano
Self - Retired FBI Agent
James Gagliano
Self - CNN Law Enforcement Analyst
Geoff Schumacher
Self - V.P. of Exhibits and Programs, The Mob Museum
Geoff Schumacher
Self - V.P. of Exhibits and Programming, The Mob Museum
Christopher Holstege
Self - Toxicology Expert, University of Virginia
Christopher Holstege
Self - Co-Author, 'Criminal Poisoning'
John Wayne Gacy
Self - Convicted Serial Killer
Larry King
Self - Television Host
Sammy Gravano
Self - Mafia Informant
Robert Graysmith
Self - Author 'The Sleeping Lady'
Robert Graysmith
Self - Cartoonist, San Francisco Chronicle
Robert Graysmith
Self - Author, 'Zodiac: The Shocking True Story'
Anthony M. DeStefano
Self - Author, 'Gotti's Boys'
Stephen Singular
Self - Author, 'Anyone You Want Me to Be'
Jeff Guinn
Self - Author, 'The Road to Jonestown'
Jeff Guinn
Self - Author, 'Manson: The Life and Times of Charles Manson'
Larry McShane
Self - Reporter, New York Daily News
Juliet Papa
Self - Reporter, 1010 Wins Radio
George Gabriel
Self - Special Agent Investigator, FBI
George Gabriel
Self - Former Special Agent, FBI