The trial that followed resulted in Colorado becoming the first state to officially sanction the use of television cameras to broadcast criminal trials. There was no federal statute on the books at the time (1955) that made it a crime to blow up an airplane. Therefore, on the day after Graham's confession, the Colorado district attorney moved swiftly to prosecute Graham via the simplest possible route: premeditated murder of a single victim - his mother, Daisie King. Thus, despite the number of victims killed on Flight 629 along with Mrs King, Graham was charged with only one count of first-degree murder. As the case progressed, Graham quickly recanted his confession, but at his 1956 trial his defense was unable to counter the massive amount of evidence presented by the prosecution. In February 1956, he attempted suicide in his cell, and was thereafter put under 24-hour surveillance. On May 5, 1956, Graham was convicted of the murder of his mother, Daisie King, and was sentenced to death.