Robert Leacock, a former medical school acquaintance of Herman Webster Mudgett—better known as H.H. Holmes—was reportedly murdered in Chicago in May 1886. Holmes, who would later become infamous as one of America's first documented serial killers, allegedly poisoned Leacock with a dose of laudanum to secure a $40,000 insurance payout.
Holmes, a trained physician, had a history of engaging in fraudulent schemes, including insurance scams. His medical expertise allowed him to carry out
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