A Tasmanian man who dismembered his friend after an execution-style murder is failing on appeal

A young Tasmanian man who murdered his friend over a possible drug dispute and dumped his body in suburban bins has failed in his attempt to reduce his prison sentence.

Jack Harrison Vincent Sadler was 26 when he lined the room of his Launceston home with plastic and shot Jake Anderson-Brettner three times with a pistol in August 2018.

Sadler used an ax to dismember the body, leaving the torso in a forest off a highway and other parts in trash cans awaiting pickup the next day.

Sadler (pictured, left with his former girlfriend Gemma Clark) dismembered the body with an axe, leaving the torso in a forest off a highway and other parts in bins awaiting collection the next day

Judge Pearce said it was “very likely” that a disagreement between the two arose over each other’s dealings with illegal drugs (pictured murder victim Jake Anderson-Brettner).

The highway near the forest where the torso of Mr. Anderson-Brettner was dumped (pictured)

Sadler’s appeal against the length of the sentence and time without parole was dismissed by the Tasmanian Criminal Court of Appeal on Tuesday, with a three-judge panel ruling that it was not manifestly excessive (pictured Sadler with then-girlfriend Gemma Clark).

Sadler was found guilty in 2021 after a lengthy trial and sentenced to 32 years in prison without a 20-year suspended sentence.

Judge Robert Pearce described the murder as “cold blood” and “an execution style” and found that despite pleas for clemency, Mr Anderson-Brettner was shot dead when he realized his fate.

Sadler’s appeal against the length of the sentence and the period without parole was dismissed by the Tasmanian Criminal Court of Appeal on Tuesday, with a three-judge panel ruling that it was not manifestly excessive.

The day before the murder, a friend bought Sadler bleach, firelighters, disposable gloves, disposable coveralls, goggles, a saw, cling film, and reusable bags.

They also bought vinegar, cayenne pepper, and chili powder, which were used to mask the smell of the body parts.

Sadler, who has been manufacturing and selling MDMA in bulk since 2014, initially lied to police about Mr Anderson-Brettner’s presence at his home.

After the murder, the house was cleaned with bleach and pieces of carpet, curtains, and other material were burned in a wood-burning stove.

“(This was) a crime in the most serious category of murder. Not only was Mr. Anderson-Brettner deliberately killed in a calculated and cruel manner, but his body was then subjected to gross humiliation,” Judge Pearce said in his sentencing statement.

Judge Pearce said it was “very likely” that a disagreement between the two arose over each other’s dealings with illegal drugs.

Sadler, who has been manufacturing and selling MDMA in bulk since 2014, initially lied to police about Mr Anderson-Brettner’s presence at his home (pictured the convicted killer with his former girlfriend).