Police seek help in Adelaide man's murder

Police investigating the bashing murder of an 80-year-old Adelaide pensioner have released security vision of a man believed to be connected to the crime.

Nicola "Nick" Piscioneri was found dead on March 9 last year in his Hendon home, where he lived alone, after police went to check on his welfare.

"Mr Piscioneri was bashed viciously with a metal pipe, believed to be either part of a microphone stand or of a drum cymbal stand," Inspector Greg Hutchins told journalists on Thursday.

He released CCTV footage of a man walking through a nearby liquor store carpark on the evening of March 7, when the murder was believed to have occurred.

A blood-stained cushion, containing Mr Piscioneri's DNA, was found near the location where the man disappears from the screen.

Further footage shows him carrying a bag walking through a hotel bottleshop and 20 minutes later returning without the bag.

Inspector Hutchins said Mr Piscioneri's wallet was missing.

There were no signs of a forced entry and police believe he knew his attacker.

"We believe it's close, we believe the person knew him," he said.

He released a photo of the murder weapon, containing Mr Piscioneri's DNA, found in a local drain.

A second blood-stained cushion was found behind a nearby bus-stop.

Inspector Hutchins said he could not speculate on a motive, adding that Mr Piscioneri was not known to police.

"He was just an elderly gentleman living by himself and the victim of a vicious bashing with a pipe," he said.

"If we can establish the exact motive, I am sure we will break the case wide open."

A neighbour reported that a few days after the murder, a red car pulled up outside Mr Piscioneri's house and a male was heard to yell out something similar to "you deserve this".