"Hazelwood's authentic and unique perspective pierces a darkness most of us would like to believe doesn't exist." Chris Carter, creator ofThe X-Files Twenty-two years in the FBI. Sixteen years on the bureau's infamous Behavioral Science Unit. Thousands of homicides, rapes, suicides, and other gruesome crimes. Roy Hazelwood, like many investigators, has seen it all. But unlike most, he's gone furtherinto the dark and twisted psyches of serial killers and sadistic sexual offendersand has emerged as one of the world's foremost experts on the sexual criminal. When clues are scant and suspects are zero, the authorities turn to Hazelwood to help track down their manand nearly every time, with Hazelwood's help, they find him. Now, acclaimed true crime writer Stephen G. Michaud takes you into the heart Hazelwood's work through dozens of startling cases, including those of The Lonely Hearts Killer, the "Ken and Barbie" killings, the Atlanta Child Murders, and many more. Here Michaud and Hazelwood go beyond the lurid details, to a deeper understanding of the depraved minds behind the grisly crimes, in a stark, startling, and fascinating work you will not soon forget. "This book tells it all." Robert K. Ressler, bestselling author ofI Have Lived in the Monster andWhoever Fights Monsters "Take it from me:Roy's insights and experience prove that he is an expert in crime analysis. The story he has to tell is well worth listening to." John Douglas,New YorkTimesbestselling author ofMindhunterMichaud, Stephen G. is the author of 'Evil That Men Do', published 2000 under ISBN 9780312970604 and ISBN 0312970609.