Very Scary People

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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

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