A crazed knifeman who tried to murder his retired neighbours has died with suspected coronavirus.
Sean Hedley Tierney was jailed for life with his sentence being served at HMP Altcourse.
Then 66, Tierney was told he must serve a minimum of 15 years after repeatedly stabbing neighbours Nigel and Marjorie Gibbs.
The couple from Llandudno, were lucky to survive the attack in August 2012 aimed at "teaching them a lesson".
Tierney admitted attempted murder after the attack left Mr and Mrs Gibbs in intensive care, reports North Wales Live.
He had been a prisoner at HMP Altcourse, and the 74-year-old was understood to have had existing health issues before contracting Covid-19.
His condition worsened at Altcourse Prison and he was discharged to Aintree Hospital on April 3, where he was isolated on a ward.
He was diagnosed with COVID-19 on April 5 and died on April 7.
It is a matter for the coroner to determine the official cause of death.
His next of kin had been informed, as well as the police and the Prisons and Probation Ombudsman.
John Whitwam, Managing Director, G4S Custodial and Detention Services, said: "A prisoner from HMP Altcourse passed away at Aintree Hospital on April 7 2020.
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"The Prison and Probation Ombudsman has been informed, as well as his next of kin, and his family and friends remain in our thoughts at this difficult time."
Mr Gibbs, who was then 66 and living in Llys Dulyn, was using a power saw outside when he was suddenly confronted by Tierney who held a knife to his face and said he was going to teach him a lesson.
Mr Gibbs was stabbed in the chest, and as he fled to a neighbour's home to get help Tierney followed and tried to stab him again.
Sean Hedley Tierney was accused of two counts of attempted murder, as he also stabbed Marjorie Gibbs.
Mrs Gibbs suffered stab wounds to her chest, abdomen and arm and was in critical care after sustaining damage to her liver.
The couple were rushed to the intensive care unit at Ysbyty Glan Clwyd.
Tierney left a phone message for a friend in which he told how he had “just killed those two b******s downstairs”.