What happened to Darrell Simon?
THE mysterious disappearance and death of Darrell Gene Simon will be examined at an inquest later this year.
Mr Simon vanished in November 2014.
His remains were only found 18 months later, on a rural Lockyer Valley property he previously owned.
A pre-inquest conference was held in on Brisbane on Wednesday.
Megan Jarvis, counsel assisting the coroner, said a forensic pathologist found "hanging, whether suicidal, accidental, or homicidal" was a possible cause of death.
But Ms Jarvis told Brisbane Coroners Court the formal cause of death entered in the autopsy report was "not determined".
Coroner John Lock said the inquest later this year would probably be held over several days in August.
Several witnesses from Ipswich were expected to attend.
But a lack of available space at court there meant the inquest would proceed at Brisbane.
Mr Simon, 44, was last seen at a Mountain View Drive property at Plainland in November 2014.
At the time, police said Mr Simon wore black bicycle shorts and a grey t-shirt, and was riding a black and green Ridgeback mountain bike.
Soon after, his partner Sharon Rowland described the disappearance as out of character.
"He got up, got dressed, he was going for a bike ride, he gave me a kiss and said I'll see you later," Ms Rowland told a media conference.
The search continued into the Christmas holidays that year.
But Mr Simon's remains were only found in May 2016.
The pre-inquest conference heard DNA from a toothbrush belonging to Mr Simon was found to match the DNA in the human remains. -NewsRegional
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