Robert Keller

Robert Keller

Robert Keller has written at least 90 books. Their most popular book is The Deadly Dozen: America's 12 Worst Serial Killers with 5 saves with an average rating of 3⭐.

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The Deadly Dozen

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Unexplained Book 1

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Cold Cases Solved Volume 2

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Cold Cases Solved Volume 1

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Cold Cases Solved Volume 4

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Unexplained Book 4

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Cold Cases Solved Volume 3

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Unexplained Book 3

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Unexplained Book 2

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Asian Monsters

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Bundy

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Unexplained Book 5

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Australian Monsters

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Killer Kids Volume 8

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Killer Kids

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Killer Kids

Murder Most Vile Volume 25: 18 Shocking True Crime Murder Cases
Dead Men Walking Volume 2: 50 American Killers Who Were Executed for Their Crimes
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British Monsters

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Dead Men Walking

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Twice As Deadly

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Human Monsters

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American Monsters

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50 American Serial Killers You've Probably Never Heard Of

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50 American Serial Killers You’ve Probably Never Heard Of Volume 9

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50 American Serial Killers You've Probably Never Heard Of

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50 American Serial Killers You've Probably Never Heard Of

True Crime: American Monsters, Vol. 12
True Crime: American Monsters, Vol. 9
Murder Most Vile Volume 43: 18 Shocking True Crime Murder Cases
Soviet Monsters: Volume 3: 22 Horrific Serial Killer Cases
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True Crime Confidential

Deadly Women Volume 10
Killer Kids Volume 2: 22 Shocking True Crime Cases of Kids Who Kill
Murder Most Vile Volume 26: 18 Shocking True Crime Murder Cases
Serial Killers Unsolved: 10 Terrifying Serial Killers Who Have Never Been Caught
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Blood Brothers

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Blood Brothers

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50 American Serial Killers You've Probably Never Heard Of Volume 10

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Cold Cases Solved Volume 6

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American Monsters

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American Monsters

Killer Kids: Volume 4: 22 Shocking True Cases Involving Kids Who Kill
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American Monsters

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American Monsters

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Blood Will Tell

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Dead Men Walking Volume 5

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American Monsters

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Beyond Evil

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Dead Men Walking

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American Monsters

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Cannibal Killers

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Twice As Deadly

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Rampage Killers

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American Monsters

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Dead Men Walking Volume 4

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Human Monsters

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British Monsters

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Serial Killers Unsolved Volume 3

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Cannibal Killers

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American Monsters

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Human Monsters

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Dead Men Walking

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Murder by Numbers

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Serial Killers Unsolved Volume 2

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Murder Most Vile Volume 43

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The Deadly Dozen

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British Monsters

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Soviet Monsters

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Serial Killers Unsolved

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Murder Most Vile

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Murder Most Vile Volume 38

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Murder Most Vile Volume 37

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Murder Most Vile Volume 36

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Murder Most Vile Volume 39

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Confessions Of A Cannibal

Blood Brothers Volume 2: 25 Terrifying African American Serial Killers
Deadly Women Volume 4: 18 Shocking True Crime Cases of Women Who Kill
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Killer Kids Volume 5

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Deadly Women

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Deadly Women Volume 7

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German Monsters

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The Devil in Whitechapel

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Unhinged

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Deadly Women

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Canadian Monsters

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Killer Kids

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50 American Serial Killers You've Probably Never Heard Of Volume 8

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Unexplained Book 6

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Murder Most Vile