Three witnesses to a brutal murder suicide which claimed the life of a bikie dubbed the ‘Lizard Man’ and his former partner will not be charged by police due to a legal loophole.

A coronial inquiry has been launched into the attack at Bronson Ellery’s Gold Coast unit which saw Shelsea Schilling bashed and strangled to death on November 18 2016.

Unlike other states, Queensland does not have a bystander responsibility law, allowing three people who watched the horrific crime to escape conviction,Gold Coast Bulletin reported.

After Ms Schilling tried to leave the apartment, Ellery bashed his ex-girlfriend’s head against his apartment tiles then pushed her head into a pillow, suffocating her.

He then changed into his best suit, positioned himself next to Ms Schilling’s dead body and took a fatal dose of drugs to commit suicide, a source close to the investigation said.

When asked if the trio of witnesses would be charged, police said they would ‘continue to prepare a report for the coroner’ but were unable to provide further details. 

Ms Schilling’s mother, Bonnie Mobbs, said she hoped bystander laws, such as those in place in the Northern Territory, would be rolled out in Queensland.

‘I feel very strongly about it, myself. I don’t understand why we don’t have these laws in the first place,’ Ms Mobbs said.

Opposition prevention of domestic violence spokeswoman Ros Bates sponsored a petition to State Parliament calling for penalties to witnesses who fail to report serious crimes.