King charged "SportsCentury," an ESPN biography series, damaged him on several counts last May, the Wall Street Journal said Thursday.
Among them, he said, was a claim he had cheated boxing great Muhammad Ali out of $1.2 million and he threatened to have another boxer killed. King said the program quoted someone saying he had killed "not once, but twice." King was convicted in a 1967 killing but acquitted in a case involving a 1954 death.
He also objected to being characterized as a "snake oil salesman, a shameless huckster and worse."
ESPN said it could not comment until it saw the suit.