HE STARTED smoking cannabis daily when he was 12, but the drug was only a gateway to crime for Joshua Michael Langtry.
By the time he was 20 he was the gun-toting "main man" behind an extensive drug trafficking operation that, after 10 months, became too much for him.
Yesterday Langtry, 21, faced Rockhampton Supreme Court on one count of trafficking dangerous drugs after he handed himself in to police in August last year.
The prosecution said Langtry was unknown to police before he walked into the station and confessed.
He admitted to police to having as many as 160 sim cards for his phone to hide his dealings.
He also told them he carried quantities of drugs on him at all times, even sewing them into his clothes, and was once patted down by a police officer while concealing an "eight ball" of methamphetamine.
When Langtry was 14 he started using ecstasy as often as he could afford it, and by 15 he was using acid on most weekends.
He was also overusing Ritalin, a drug he was prescribed when he was six years old after being diagnosed with ADHD.
At the age of 16 he started using methamphetamine, and was a regular cocaine user by 18.
He sold drugs to children as young as 12, a fact that Justice McMeekin condemned.
"They have effectively destroyed your life so far," he said. "Other lives have been destroyed because of you. It's an evil trade, and one that must be condemned."
Langtry had a group of four people working for him to traffic drugs.
The court also heard he regularly threatened people with violence and carried a gun for his own protection, which has since been stolen.
The defence said he came from a broken home, with his parent separating when he was 11.
His mother lived in Townsville while his father moved to Gracemere, although he attended high school at Blackwater State High School.
While he has never been officially diagnosed, the defence said he feels depressed and has suffered extreme emotional issues.
He broke his back and pelvis after falling off a cliff at Mulambin Beach in 2013, which saw him use drugs to self-medicate the pain.
He is on a disability support payment and has no employment history.
Justice McMeekin said the sentence should reflect the size of the operation and the condemnation of society.
However he said he had a chance of rehabilitation, taking into account his age, the fact that he cooperated and was remorseful and his lack of criminal history.
Langtry was sentenced to seven years in jail with a non-parole period of 18 months.