Dudko was the mistress of John Killick, who was being held on remand at Sydney's Silverwater Correctional Centre on charges of armed robbery. At the time, Dudko was residing with Killick's wife Gloria and visited Killick three times a week at his prison. During these meetings, Killick revealed a plan for Dudko to help him escape, having formed the idea of using a helicopter.
Helicopter hijacking and Killick's breakout
On the morning of 25 March 1999, Dudko waited at the Sydney International Airport to receive a call from Killick to confirm that he was entering the exercise yard at Silverwater. Once alerted, Dudko began a pre-booked helicopter flight over the construction site of Sydney Olympic Park. However, shortly into the flight Dudko drew a pistol from her bag and turned it on pilot Timothy Joyce. He was instructed to fly over the prison and land on the oval. Killick was able to climb into the helicopter, and shortly after officers of the prison opened fire on the vehicle with two bullets making contact. Once the helicopter was landed, Joyce was tied up and the couple hijacked a car to flee the location. Dudko and Killick remained on the run in both Victoria and New South Wales for 45 days. The escape made international headlines and has become one of the most famous counts of criminal activity in Australia during 1999. The actions also led to Dudko being dubbed "Red Lucy" by the media for her "crime of passion".
Capture and imprisonment
On 8 May 1999 the couple, returning to Sydney to receive money from one of Killick's former acquaintances, was arrested at the Bass Hill Caravan Park, where they had rented a cabin as "Mr. and Mrs. MG Brown". In March 2001, Dudko's trial began. She was found guilty by a jury of the District Court of New South Wales of five charges: the rescue of an inmate in lawful custody by force, assault on a member of the crew of an aircraft, detention for advantage, and two counts of unauthorised possession of a firearm. She was sentenced to 10 years' imprisonment with a non-parole period of 7 years. Dudko served her time at the Mulawa Women's Prison and was released on parole on 9 May 2006. During her time in prison, Dudko wrote some 4,500 love letters to Killick. She ended all communications and as such their relationship when she rediscovered her faith in the Bible, something Killick did not believe in.
In popular culture
John Kerr printed the story of the prison escape for the first time in the 2003 bookWanted: John & Lucy: Rescue by Force, Silverwater Prison, 25 March 1999. The 2015 single "Long Loud Hours" by Australian hip hop musician Urthboy tells the story of Dudko's crime, sung from her perspective.
Life after prison
As of 2009, Dudko was working at a Rydalmere factory and living in a one-bedroom flat at the base of the Blue Mountains. A condition of Killick's parole upon his release from prison in 2015 was that he was not permitted to have any contact with Dudko until 2022. However, in a later review of these terms, this condition was removed. Killick must still receive permission from his parole officer before making any contact with Dudko.