It claimed a stray pubic hair found on Ms Blakie's body that was never identified could have belonged to him.
Ms Blakie's father, Doug Taylor, told the current affairs programme he'd always had his doubts. "I believe he [Taylor] was involved and he had a part to play, but I always had doubts that he was the one that killed Lisa."
His suspicions were also echoed by a former police officer, Bridget McMenamin, who had worked on the case.
She told 3D police at the time ignored key evidence in the case.
"A lot of people on that case worked damn hard, but I think the people in charge of that case decided they wanted to get an arrest and Taylor was going to be the easiest person to arrest for the murder of Lisa Blakie."
She remained convinced there was one piece of evidence that held the key -- a white Bedford van seen by 10 people in the area. It was never searched by police.
The van, which was owned by the Devil's Henchmen, was never searched by police.
Taylor, who knew the gang and was always thought to have known more than he let on, admitted earlier this year in a meeting with Ms Blakie's father that he'd seen the van that day.
He named three people inside, two of whom Ms McMenamin said had been ruled out in the investigation.
"They were a boyfriend she was trying to break up with and was very scared of, and his best friend."
She said the pair were DNA tested and eliminated from the inquiry, but the third person, who is now believed to be living in Australia, never was.
Ms McMenamin said the stray pubic hair could provide the missing link.
The 3D team tracked the third mystery man to Queensland, but he appeared to have moved on by the time they arrived at his work.
Police have told 3D investigations into the new suspect were "ongoing".
However, Ms Blakie's father was not satisfied.
"It's very, very difficult believing in your heart that there are others out there walking on the street that could be involved."
