A Killer Wrote a Letter Claiming He Had a "Kind Heart" Moments Before His Capture
In 1931, as 150 police officers surrounded the apartment where notorious killer "Two Gun" Crowley made his last stand, he still found time to write a letter describing himself as having a "kind heart." Dale Carnegie used this chilling story to open the single most important principle in the art of dealing with people: never criticize, condemn, or complain.
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