Wexford Karr says his son, John Mark Karr, has been forced to leave the country by neighbors who made him feel anything but welcome, The Atlanta Journal-Constitution reported Wednesday.
"He knew he'd never be able to live a normal life here," the elder Karr told the newspaper.
Residents of his Grant Park neighborhood said they worried about Karr's son because there are so many children living in the area.
John Mark Karr, 43, was never convicted of any crime but faced child pornography charges in California when he emerged as a potential suspect in the Ramsey case.
He was extradited from Thailand in 2006 but was subsequently cleared when his DNA did not match the male DNA found on the body of Jon Benet Ramsey, a 6-year-old beauty contestant found dead in her home Dec. 26, 1996.