Mother of Bronson ‘Lizard Man’ Ellery's ex hits out at witness who watched her daughter die.

The mother of Bronson ‘Lizard Man’ Ellery‘s ex-partner whose body was found alongside the notorious Queensland criminal five days ago has slammed the witness who says she watched her daughter die.

Yesterday, a woman came forward claiming she was in the Southport apartment where the pair where found and saw Ellery shoot 20-year-old Schilling before turning the gun on himself.

A photo of Shelsea posted is her mother's Facebook profile picture. Source: Facebook

Schilling's mum, Bonnie Markwell Mobbs, hit out at the unnamed woman on her Facebook page in a long post hoping to clarify details around her daughter's death.

"This lady watched our beautiful Shelsea being abused and assaulted and die then left her there and didn't call the police or ambulance," Markwell Mobbs wrote.

"Then only to say something one week later."

The woman's lawyer, Jodi Allen, has told the Courier Mail  her client was initially terrified to come forward but wanted to assist investigators in any way possible:

"The witness is only a young lady who has been through a traumatic experience and is extremely distressed but is doing her best to assist the investigation."

Aside from her remarks about the witness, Markwell Mobbs also clarified a number of other points about the case, including that Ellery and Schilling we not in an intimate relationship - or at least no longer in one - despite an apprehended violence order taken out by the young woman against the former Bandido bikie 'enforcer'.

"Shelsea was never going to runaway with that monster, the day before Shelsea went missing she brought a lunch box and folder for work and all her belongings are in place," the distraught mum wrote.

She also made it clear that speculation over her daughter's potential drug-taking was misplaced as Schilling did not drink or take drugs.

She also had no connection to bikie gangs and had not been suicidal.

"There will be justice for our daughter ... R.I.P our darling daughter Shelsea Schilling."