Marcin Buryta, 32, found 45-year-old Piotr Pruszak at his home in Conifer Road, Southampton, in February and shot him four times, Hampshire Police said.

Marcin Buryta, 32, was previously convicted in Poland of killing a man at a birthday party/Hampshire Police

A "weapons-obsessed" convicted killer who used a partly 3D-printed pistol to murder an intruder has been jailed for a minimum of 30 years.

The defendant was a drug dealer who previously killed a man at a birthday party in his native Poland when he was a teenager, officers added.

He was jailed for life at Winchester Crown Court for murder, two counts of possessing a firearm and one count of possessing ammunition with intent.

Buryta phoned police shortly before 20:00 GMT on 11 February to say he had shot someone, the court heard.

He then continued to send and receive messages about the prices of cocaine and ketamine, police said.

At the address, officers found Pruszak with gunshot wounds from a Glock pistol, parts of which had been home-printed.

Police later found two more firearms, a loaded crossbow, a machete, a dagger, knives and knuckle dusters at the address.

During the trial, jurors were told Buryta was 19 when he fatally stabbed a man at a birthday party in Poland, police said.

Det Chief Insp Clair Trueman said: "Buryta is a man obsessed with weaponry, who didn't stop with the initial shots he fired that night, instead retrieving further ammunition and shooting again."

Previously, Pruszak's family, from Poland, paid tribute to their "beloved son and brother".