Duffy is exposed

In October 1986, a 14-year-old schoolgirl miraculously managed to get away with her life after she was raped by both men.
After this attack, on 21 October 1986, Duffy’s luck began to run out. While stalking a woman in a park on 7 November 1986, he was discovered and arrested. The next day, Duffy was charged with three murders, and seven counts of rape.
Mulcahy was also arrested, but later released due to lack of evidence. It was to be two years before Duffy would speak out and admit that he carried out the attacks with an accomplice.