A man who threw a pot plant at his elderly mother’s head and killed her while suffering from heroin withdrawals has been found guilty of her murder.
David Andrew Mapp lobbed the plant at 82-year-old Colleen Wilson during an argument at her home in Tumbi Umbi on the NSW Central Coast on July 28, 2022.
The 59-year-old was found guilty of murder at the NSW Supreme Court on Thursday.
During his trial, the jury heard Mapp told police he tried to revive his mother for about eight hours before calling triple zero.
After Ms Wilson’s death, he pawned her television and whipper snipper for $200 which he used to buy heroin.
She was previously forced to pay $700 to get her TV back after her son pawned it.
Mapp claimed he did not intend to kill his mother but was suffering from severe anxiety and heroin withdrawals, an argument rejected by the jury.
His earlier guilty plea to manslaughter was knocked back by prosecutors.
His defence said he had used heroin since he was 16 years old and relied on his mother for support.
David Andrew Mapp (pictured left) murdered his 82-year-old mother Coleen Wilson at Tumbi Umbi on the NSW Central Coast on July 28, 2022
When emergency services arrived, Ms Wilson was lying on the floor underneath a red blanket with blood and soil surrounding her. The house is pictured
They said at the time of the killing he would have been unable to control his actions as he was suffering from heroin withdrawals and generalised anxiety disorder.
Immediately after murdering his mother, Mapp took 10 Valium tablets.
When emergency services arrived, Ms Wilson was lying on the floor underneath a red blanket with blood and soil surrounding her.
The matter will come before Justice Ian Harrison on February 5, when a date for a sentencing hearing will be set.
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