In 1968, some months after separating from his wife, Mooney lured a 16 year old girl into his car. When she screamed and tried to escape, he punched her in the face, breaking her nose. He then raped her and a short time later, raped her a second time. Mooney was convicted of one count of assault occasioning actual bodily harm, and two counts of rape. At sentencing, he was supported by a Catholic Priest, Father Kevin Toomey. Mooney was sentenced to 12 years goal with a minimum of 9 years and was sent to HM Prison Pentridge.