Police say Baxter had a history of domestic violence.

It was Rowan's way or the highway. "I've spoken with many people who work in the DFV sector and everyone has been absolutely devastated by the deaths of Hannah and her little babies," Ms Farmer told AAP. Witnesses told Australian media she had screamed "he's poured petrol on me" and "save my children" when helpers rushed to the site. But before she passed away the mum-of-three gave a detailed report to first responders about what had happened. Ms Clarke was forced to meet him at 8.30pm to have the children returned.The Clarkes allowed Baxter to see his children. Mourners hug at a makeshift shrine near the scene of the car fire that killed Hannah Clarke and her three children Source: AAPHannah Clarke and her three children, Aaliyah, six, Laianah, four, and Trey, three.Queensland Minister for Child Safety Di Farmer speaks during Question Time at Parliament House in Brisbane, Tuesday, November 26, 2019.
“The scum rots in hell,” Mr Clarke said on social media.

Hannah and her children Aaliyah, six, Laianah, four, and Trey, three, are being remembered as beautiful souls who were taken in the worst possible way. He was controlling. Hannah Clarke with her three children – Laianah, Aaliyah and Trey aged between three and six. Hannah Baxter with her son Trey. Their father Rowan Baxter, 42, died on the footpath from self-inflicted wounds, police said. "Details of the couple's toxic split continue to emerge with revelations Baxter had been in counselling and had rejected a shared custody offer.The offer would see him with the children several times a week, according to the ABC.Baxter rejected his lawyer's advice during a mediation session with Clarke and refused to sign the order that would allow him 165 days of custody per year.Instead, Baxter signed a non-legally binding agreement that gave him just as much access to the children their mother.Ms Clarke's mother Suzanne told Channel 9's A Current Affair that her daughter first experienced psychological trauma and abuse from her estranged husband, which slowly turned physical, leaving Ms Clarke in fear for her life.Mrs Clarke was blunt in her assessment of Baxter: "He was evil. Hannah Clarke watched her estranged ex-husband set fire to their children. The children of Hannah Clarke and Rowan Baxter, Aaliyah, six, Trey, three, and Laianah, four. Credit: Facebook - Stacey Roberts. Her family are still trying to come to terms with the massive loss, but hope her legacy can live on.

"But they've also said that in the past few days, they've seen an incredible surge in calls from people asking for help - and importantly, from people asking for help to stop being violent. "Mum I feel so bad for him," she said, when the children hung up.The family described the incident as an example of one of the methods Baxter used in a long-running practice of manipulating Ms Clarke.Ms Clarke was driving on Raven Street with her children in the back seat when She managed to get out of the car, where a good Samaritan did what they could to help her.Ms Clarke, with 97 per cent burns to her body, and Baxter were both taken to hospital. '"The Clarke family say more needs to be done to ensure victims are better protected from their abusers, and are hoping to establish a support system for women suffering at the hands of domestic violence.On Saturday, they posted a thank you message for public support as donations for the family soared past $206,000. She didn't fear for her children's lives but felt she could be in danger.Baxter cried as Hannah and the children spoke to him over the phone.