Waden was questioned over the murder of his girlfriend, Priscilla Brooten.

Waden was questioned over the murder of his girlfriend, Priscilla Brooten.

Police asked Waden about his girlfriend after she went missing from their home in Brisbane's north.

Nine can reveal never-before-seen evidence from the trial of Mark Sheridan Waden, convicted of murdering his ex-girlfriend in Brisbane in 2018.

The case was eventually a circumstantial one, with no body, no eyewitnesses and no crime scene. So, detectives asked, what happened to Brooten?