'Controlling and manipulative' mother allegedly murdered her two disabled children to claim insurance payouts before abandoning her dead teen daughter to go on a cruise, court hears

  • Maree Mavis Crabtree is accused of murdering her two adult disabled children 
  • Police allege the children died after being forced to take prescription medication
  • Erin, 18, died at Gold Coast home in 2012 while Jonathan, 26, died in 2017
  • A court heard Crabtree allegedly murdered her children for insurance payouts 

A Gold Coast mother accused of murdering her two adult children with disabilities for insurance payouts was 'very controlling' of her son, a court has heard.

Maree Mavis Crabtree faces a string of charges including counts of murdering her daughter Erin, 18, in 2012, and son Jonathan, 26, five years later.

Both siblings had disabilities, with police alleging they died from being forced to take prescription medication.

Crabtree, 54, is also charged with attempting to murder Jonathan six months before his death, and the grievous bodily harm and torture of a woman, aged in her 20s.

Erin was found dead in their Maudsland home in September 2012, while Crabtree was on a cruise.

Gold Coast woman Maree Mavis Crabtree (pictured) is accused of murdering her two adult children with disabilities for insurance payouts

Gold Coast woman Maree Mavis Crabtree (pictured) is accused of murdering her two adult children with disabilities for insurance payouts

Jonathan was 'very distraught' about the death of younger sister Erin, former rugby league coach Adam Flier told Brisbane Magistrates Court on Tuesday.

Mr Flier told the court Jonathan was happy-go-lucky, but there 'was always that underlying sadness there' to do with Erin's death.

Jonathan's friend Cassandra Hopper told the court the older brother was 'always pretty self-destructive' about Erin's death.

'(He) was very upset about it and didn't want to be alive because she was dead,' she said.

Jonathan also told her his mother wouldn't let him get a job, Ms Hopper told the court.

'He didn't say why, he just basically said that she was very controlling and he wasn't able to live his own life,' she added.

Crabtree is accused of murdering her daughter Erin (left), 18, in 2012, and son Jonathan (right), 26, five years later

Crabtree is accused of murdering her daughter Erin (left), 18, in 2012, and son Jonathan (right), 26, five years later

'He had to live by her rules.'

Jonathan's former girlfriend Katelyn Lofts told the court she thought Crabtree put something in a drink that caused her to feel groggy and fall asleep on three occasions.

She said she didn't confront Crabtree 'in case she denies it like she does with other stuff'.

'She does tell a lot of lies,' Ms Lofts added.

She told the court Jonathan was violent towards her, throwing her against walls and hitting her during their relationship.

Crabtree once walked in when Jonathan was assaulting Ms Lofts, she said.

'He was actually choking me, holding me down on the bed and would not let me go,' Ms Lofts added.

She said Crabtree didn't do anything, but smile and laugh.

Crabtree is also charged with attempting to murder Jonathan six months before his death, and the grievous bodily harm and torture of a woman, aged in her 20s

Crabtree is also charged with attempting to murder Jonathan six months before his death, and the grievous bodily harm and torture of a woman, aged in her 20s

Ms Lofts told the court she split up with Jonathan numerous times, but would go back to him because he threatened to kill himself.

Jonathan's dead body was found in his Upper Coomera home in 2017, a few years after he drove his car into a tree, with the crash leaving him on life support and facing months of rehabilitation.

Ms Lofts told the court Jonathan told her he was 'petrified' of Crabtree and that he drove into the tree because he wanted to kill himself.

Crabtree is facing a committal hearing which is set down for three weeks.

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