Melbourne man sentenced for murder after PCE drug-induced incident in 2023
Consensus Summary
Mark Ludbrook, a 54-year-old wheelchair-bound man with transverse myelitis, was sentenced to 19 years in prison on May 7, 2026, for the murder of his friend Autumn Baker, 40, on August 3, 2023. Ludbrook was under the influence of PCE, a synthetic drug mis-sold as ketamine, which caused erratic behavior, including walking around naked and talking to plants. He stabbed himself twice before turning the knife on Baker after she and his carer, Amber Davison, attempted to intervene. Ludbrook pleaded not guilty, arguing he lacked intent due to drug-induced impairment, but a jury found him guilty. Justice James Gorton acknowledged Ludbrook’s behavior was unusual and drug-induced but ruled self-intoxication was not an excuse. Ludbrook must serve a minimum of 14 years before parole eligibility in June 2038. The Victorian Department of Health had previously warned about PCE’s dissociative effects and loss of judgment.
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Key details reported by multiple sources:
- Mark Ludbrook was sentenced to 19 years in prison for the murder of Autumn Baker on May 7, 2026, by Justice James Gorton in the Victorian Supreme Court.
- Ludbrook stabbed Autumn Baker to death on August 3, 2023, at his Hoppers Crossing (Point Cook) home in Melbourne’s southwest.
- Ludbrook was under the influence of PCE, a synthetic drug mis-sold as 'extra strong ketamine,' when he committed the murder.
- Ludbrook had a rare neurological condition called transverse myelitis and was wheelchair-bound, but on the day of the murder, he was able to walk around naked for about 90 minutes.
- Ludbrook took a 'double dose' of PCE, which caused erratic behavior, including talking to plants, stripping off clothes, and behaving like a 'vibrant expressive game-show host'.
- Ludbrook pleaded not guilty, arguing he lacked murderous intent due to drug-induced impairment, but a jury found him guilty of murder.
- Ludbrook must serve a minimum of 14 years before being eligible for parole, with potential release in June 2038.
- Autumn Baker, 40, was a friend of Ludbrook who went to check on him after his relationship breakdown.
- Ludbrook’s carer, Amber Davison, was present during the incident and attempted to intervene before calling police.
- PCE was described by the Victorian Department of Health as causing 'unexpected dissociative effects' and a loss of judgment, with a public warning issued in 2025.
Points of Difference
Details reported by only one source:
- Ludbrook had been using illegally sourced ketamine to manage chronic pain from transverse myelitis before taking PCE.
- The judge described the case as 'most unusual' and Ludbrook’s behavior as 'entirely inexplicable'.
- Ludbrook’s loved ones and Ms. Baker’s family gathered in the Supreme Court for the sentencing hearing.
- Ludbrook was arrested in the backyard after stabbing himself twice in the abdomen before turning the knife on Ms. Baker.
- Ludbrook had been self-medicating with illegally sourced ketamine but ran out on the day of the murder, leading him to take PCE.
- Ludbrook was described as acting 'bizarrely' before the murder, including talking to a daisy bush in the backyard.
- Ludbrook took a 13cm serrated kitchen knife during the incident.
Contradictions
Conflicting information between sources:
- ABC states Ludbrook was able to walk around for about 90 minutes, while NEWSCOMAU does not specify the exact duration but confirms he walked around naked.
- ABC mentions Ludbrook 'thanked colours' and 'rubbed money on himself,' while NEWSCOMAU does not include these specific details.
Source Articles
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