A man has been found guilty of murdering another man in Darwin by burning him alive in a car boot in a dispute over stolen beer.

A Northern Territory Supreme Court jury found Gary Stuart Miles, 41, murdered 46-year-old Paul Stamp by putting him in a car boot and setting the vehicle alight in an industrial area in Winnellie, Darwin, last September.

The jury also found Miles guilty of unlawfully causing serious harm, deprivation of liberty and criminal damage to a vehicle using fire.

During the trial, the jury heard the dispute arose after Stamp took beer from a fridge without permission.

The trial had been expected to run for three weeks but lasted 10 days.

Paul Stamp's parents, Jack and Helen Stamp, outside court after the verdict. ( ABC News: Andrew Thompson )

During the trial Miles told the jury he did not set the car on fire but his friend Gregory Channing did.

Channing has already been sentenced to five-and-a-half years in prison after he pleaded guilty to unlawfully causing serious harm and deprivation of liberty.

The jury also heard two recorded police interviews where Miles confessed to killing Stamp.

Miles told the court he only told police that story because Channing had threatened him.

Jack Stamp, the victim's father, says he has spoken with the murderer's parents.

"His dad came up to me. I didn't know who his dad was and I said 'we'll never get over this'," he said.

"He said 'neither will I'. So Gary's mum and dad are suffering just like us."

Miles will be sentenced on Friday.