Young, 63, has pleaded not guilty to three counts of murder and one count of attempted murder. Married couple Mervyn and Maree Schwarz and Maree's son Graham Tighe were found dead at the gate of Young's property on August 4, 2022. Graham's brother, Ross Tighe, survived and told the court he witnessed Young shoot his family and that he was also wounded — a projectile remains in his body.
In his closing address on Tuesday, defence lawyer Anthony J Kimmins questioned Ross Tighe's credibility. "Why would the murderer let Ross Tighe go?" Kimmins asked. "It seems to remain one of life's great mysteries, unless the murderer was, in fact, Ross."
Kimmins argued that all elements of the alleged shooting could have been performed by Tighe. "Imagine that Darryl Young wasn't there," he said. "Is there anything which specifically could not have been performed by Ross Tighe? There isn't at all."
The defence also highlighted Tighe's actions after the shooting. Kimmins read from Tighe's account of fleeing into bushland and asked: "What does the loving son do to go and assist his mother? He doesn't even give two hoots about Mum. He is just more concerned about getting out of there. No alleged heroics."
Kimmins said it "defied logic" for Young to shoot four people and let one flee on foot. "Why did Darryl Young let him go and not try [to] finish him off?" he asked. "It is absolutely inexplicable, having gone to the trouble of murdering three people and letting a wounded one go."
The trial continues before the jury.