The love of a sibling is one of the purest things anyone can experience. For Dale McCauley, 44, it was the love and persistence of his sister Sandra, which would bring a confession, an end to the near two-decade search for his body, and the eventual conviction of the man who tragically cut his life short.
Nestled a comfortable seven-minute drive away from the bustling winery town of McLaren Vale is the cozy town of Willunga.
With a population of a tick under 4,000, the sleepy town is known for its cafes, community spirit, funky architecture, and its Saturday Farmers’ Markets, which are proclaimed to be some of the best in Australia.
Many holidaymakers find themselves cruising past the exit at a comfortable pace as they make their way onto the winding Willunga Hill, the beginning of the home stretch of the drive to Victor Harbor, with the seaside community playing host to nearly a million visitors annually.

Willunga, while well-known to locals of the Fleurieu Peninsula, is frequently overshadowed by its more marketable compatriots of McLaren Vale and Victor Harbor. A mysterious disappearance would thrust the town into the limelight, leaving locals, loved ones, and the South Australian Police baffled for the better part of the next two decades.
To all who knew him, Dale McCauley was an introvert who didn’t need much to be happy.
An artist, who took pleasure in noticing the finer details, Dale had just returned from Yuendumu in the Northern Territory (nearly 300km northwest of Alice Springs) when he had been running a community art centre.
With the Art Centre established and successful, Mr. McCauley rode his luck to expand his business interests. He, along with a friend, Adrian Mahony, who he had met while working at the Art Centre, who was at the time living on Mr. McCauley’s property in Willunga, jointly purchased a yacht for $14,000, with the ultimate goal of refurbishing the yacht, moving to the Whitsunday Islands and establishing a charter boat business. Little did the pair know the $14,000 price tag was not going to be all it cost them.
It would cost McCauley his life. Adrian Mahony would spend the next two decades darting in and out of Australia at least half a dozen times to evade capture, and ultimately, responsibility.
It was the middle of February 1998 when South Australian Police were notified that nobody had heard from Dale McCauley for over a month. Family and friends had been concerned, but no alarm had been raised.
Everyone who knew him knew three possessions went wherever Dale did, his wallet, his passport, and his Akubra hat. It was a visit to the property by a friend of Mr. McCauley, which was met without answer, where the friend spied his Akubra, and knew something was amiss. Armed with this information, he went straight to the police.
By this time Dale McCauley had been dead for a month, and it was his business partner, Mr. Mahony, who had been the last person to see Mr. McCauley alive.
The venture between the two men seemed perfect. It would give them the opportunity to see more of the country while spending time on some of the most pristine waters the earth has to offer. Despite this, Mr. McCauley had a change of heart, a decision which would see him callously beaten to death.
It was Friday 16th of January 1998 and the heat was on. Willunga was in the midst of a week-long stretch where the temperature would only drop below 30° on one occasion, with the 35° maximum on that day sitting comfortably above the January average.
The prolonged heat exposure had impacted the decision-making abilities of Adrian Mahony, and when Dale told him he wanted out of their business arrangement he picked up a nearby metal pole and beat him in a fit of mad range which had overtaken him, only stopping when, in his own words, “I was out of breath and I actually felt part of his skull collapse”.
Unfortunately for Mr. McCauley and his loved ones, that is a secret that wouldn’t come to light until nearly two decades later.
A break would come in 2015 when the decision was made to re-examine the case. A Crime Stoppers segment that aired in November of that year yielded 13 calls, in addition to the 40 calls which had been received about the case since his disappearance in 1998. It was a combination of evidence from the Crime Stoppers calls, a covert operation, and an additional search of Dale’s property which would result in an arrest being made on January the 5th 2016.
The day after the arrest Mr. McCauley’s sister, Sandra, flew into Adelaide to front the media with Detective Superintendent Des Bray of the South Australian Police.
Ms. Cole-Stokes, the younger sister of Mr. McCauley, said she thought it was strange there had been no movement, particularly given Dale’s wide circle of friends.
“He wasn’t the kind of person to not [do things or] be in touch with his friends”
Despite losing contact with her brother in early adulthood, she acknowledged his disappearance left a huge gap in her life.
“I want to find an ending. I want the person responsible to speak up and say where they’ve put Dale so that I can bring him home. Both my mother and father have passed away. I’m the only one in our family left”.
Now in police custody, Adrian Mahony saw the plea from Ms. Cole-Stokes, and it struck a chord. Knowing the deck was stacked against him, he made the decision to lead police to Mr. McCauley’s body. When standing trial for the murder in September 2017, he attempted to use the fact he had shared the location of the body as justification for receiving a lower sentence.
He was found guilty and sentenced to fifteen years, five years less than the mandatory minimum for murder in South Australia, due to the fact he cooperated with the police. Sitting Justice, Malcolm Blue, noted “Your cooperation sealed a conviction because [without it] the prosecution only had a relatively weak case against you. It was also significant as it meant closure for Mr. McCauley’s family”.
Speaking outside court Ms. Cole-Stokes said she felt that justice had been done, as the sentence ensured Mr. Mahony would be in his mid-80s at the end of his sentence.
The arrest, trial, and sentence of Adrian Mahony are a testament to the dedication of both the police and Mr. McCauley’s remaining family to find answers and bring his killer to justice.
Speaking to the media, Des Bray issued a stern warning for other criminals who were yet to have their past catch up with them.
“The fact that we went a long time without leads didn’t mean we were going to give up. It meant we were going to fight harder. Anyone who has committed a terrible crime should be feeling pretty uncomfortable because the passage of time is never going to change what you’ve done.”





