A burglar who killed an 87-year-old war veteran as he ransacked his home for drug money has been jailed for a minimum of 18 years.
Frank Worsley died from a stroke less than three weeks after being battered by burglar Daniel Crompton.
Crompton, 24, swore at the jury as the life sentence was passed at Manchester Crown Court.
Earlier, as the foreman returned a guilty verdict against him, Crompton burst into tears and shouted "I'm sorry" to his family in the public gallery.
Jurors, who had deliberated for nearly six hours over verdicts of murder or the alternative lesser charge of manslaughter, were also in tears as they were told for the first time Crompton had 47 previous offences - including for robbery and for lashing a cup of boiling hot sugared water over a fellow inmate in jail.
Grandfather-of-two Mr Worsley died from a stroke less than three weeks after being battered by jobless cocaine user Crompton.
Mr Worsley's 999 call was played to the court during the trial as the pensioner begged the operator: "Help me please. He's hit me and beaten me and attacked me and taken my wallet."
He had been awoken by Crompton standing over him in bed before being punched in the face with demands to say where he kept his money.
Crompton had admitted two burglaries on the same night last summer, including the burglary of Mr Worsley's house, but denied murder, claiming his victim was injured in a struggle.
Crompton carried out the burglary for money to buy cocaine,
Second World War veteran Mr Worsley, who served in the Royal Navy Medical Corps, was attacked at home in Longfield Road, Daubhill, at about 12.40am on August 3.
He had lived at the mid-terrace house with his wife Mary, since 1949, and had put extra locks on doors after they were burgled in 2010.
Mr Worsley had nursed his wife for 25 years during her illness with multiple sclerosis, until her death in September 2012.
They had been married for 62 years and received a message from the Queen when they celebrated their 60th wedding anniversary.
Described by his family as an "all-round good guy" and by neighbours as a "true gentleman" Mr Worsley was well known in his neighbourhood.
He was also a founder of a church-run Youth Club and Sunday school teacher at his local church St Bedes in Bolton.
On leaving the navy he worked for the Co-Operative Society in the grocery department until eventually working as a planning clerk until his retirement.
The court heard Mr Worsley was still active and regularly "out and about" despite his age but he also suffered from a heart condition.
He took the blood thinning medication, Warfarin, which prevented his blood from clotting to stave off a heart attack.
But after being admitted to the Royal Bolton Hospital for treatment after the burglary, doctors had to stop this medication so his blood would clot to prevent bleeding on his brain from the beating by Crompton.
But Mr Worsley then suffered a stroke on August 7 last year and died on August 20 after his condition deteriorated rapidly.