Schizophrenic prisoner jailed for bashing an Aldi cashier with a baseball bat & took ice and Xanax before strangling a fellow prisoner & # 39;
- Mervyn Davidson is accused of killing Alfredo Pengue, 54, in Silverwater
- Davidson waited for the penalty for bashing an Aldi cashier with a baseball bat
- While he waited in pre-trial detention, he would have beaten Pengue to death
- The court heard that Davidson was taking methamphetamine and Xanax before the alleged attack
A prisoner with late onset schizophrenia consumed methamphetamine and five Xanax tablets in the hours before hitting a fellow prisoner and strangling in a Sydney prison, a court has heard.
Mervyn Davidson is accused of killing 54-year-old Alfredo Pengue in Silverwater's Metropolitan Remand and Reception Center in February 2018.
Davidson was at the facility awaiting the punishment after pleading guilty to the drug-induced January 2017 bashen of an Illawarra Aldi cashier with a baseball bat and the subsequent suffocation of a cellmate with his shirt.
Mervyn Davidson is accused of killing 54-year-old Alfredo Pengue in Silverwater's Metropolitan Remand and Reception Center in February 2018
He was sentenced to a maximum of 11 years in prison for the violations.
The crown stated Tuesday in the NSW Supreme Court that Davidson and Pengue were in the same pod in the facility and had adjacent cells.
Allegedly, Davidson stood by Pengue's cell door on the day of the alleged murder shouting: "I will kill all of you."
He went into Pengue's cell for about 25 minutes and left, then returned and left the door open.
Authorities later found Pengue with the front facing down with ligature marks in his neck and numerous broken ribs. He was taken to the hospital but died.
Prosecutor Paul Lynch claimed that there is & # 39; strong indirect evidence & # 39; was against Davidson, because he was the only other person in the cell at that time.
Davidson was imprisoned for 11 years after the Aldi disaster in New South Wales
Davidson was at the facility awaiting the punishment after pleading guilty to the drug-induced bashing (photo) of an Illawarra Aldi cashier with a baseball bat
Psychiatrist Olav Nielssen, who reviewed Davidson for a medical report filed in October 2018, said the accused had a lifelong history of alcohol, cannabis and opioid abuse, but had started hearing voices – including a woman he & # 39; Senorita & # 39; called – after ingestion methamphetamine.
As a result, he suffered from limited emotions, blunted thinking and impaired cognitive function, and was able to present psychological illnesses as a defense.
Davidson – 44 years old at the time of alleged insults – was placed on medication after his first episodes in 2017, Dr. Nielssen said.
In retrospect, & # 39; the dose of medication was too low to sufficiently control his symptoms & # 39 ;.
Davidson also admitted to consuming ice and five Xanax anti-anxiety pills at 8.30 am on February 9 at 8:30 am, about six hours before Pengue's death.
Forensic psychologist Adam Martin told the court that those substances may have aggravated the symptoms of schizophrenia by acting as inhibitors, provoking new mental hallucinations, and obstructing memory.
Davidson can no longer remember the alleged attack.
& # 39; It could have led him to act drunk while he was drunk, & # 39; said Dr. Martin.
The psychologist said he was sitting on the fence & # 39; when asked if David's mental illness or drug abuse were the key factor in his alleged crime.
The trial with just the David Davies Justice Judge continues.
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