Just looking at their childhood photographs, you'd never guess what the world's most notorious criminals would grow up to become.
Jeffrey Dahmer, the infamous serial killer of the 1990s, was called a "bright and loving child."
"He was very exuberant, he liked to wrestle," his father Lionel Dahmer told A&E. "He liked to run around, ham it up for the camera."
The same can be said of other famous criminals.
Looking at pictures of a younger John Wayne Gacy or James Holmes, it's hard to imagine they'd grow up and be accused of some of history's most gruesome crimes.
John Wayne Gacy raped, sexually assaulted, and murdered at least 33 boys in the 1970s.
Source: Clark County, Ind. prosecutor
Here, John Wayne Gacy poses with First Lady Rosalynn Carter in 1978.
Al Capone was one of Chicago's most famous gangsters. He was behind the 1929 'Valentine's Day Massacre' of seven rival gang members, which is still one of the most notorious crimes on record.
Source: FBI
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