Hans Dalton suffered from a mental illness and was found dead upside down in a water drum in 2012.
Time hasn't healed the pain for Hans Dalton's family. Five years on they've had no closure or answers.
"We feel there is a lot of unresolved issues and the people who did this to Hans have not been held to account," Mr Dalton's sister, Natasha Dalton, told 1 NEWS.
"So truth and justice has not been upheld in Hans' case."
Hans Dalton hadn't committed any crime, but he'd lost his medication during a cyclone while on holiday in Samoa.
