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Killer Nash slashes his own throat in horror suicide bid in prison

Crime DeskBy Shuki Byrne
Suicide: Mark Nash slashes his own throat in the early hours of Monday
Suicide: Mark Nash slashes his own throat in the early hours of Monday

Convicted murderer Mark Nash has reportedly attempted suicide in prison using a makeshift blade.

According to a report in today's Irish Daily Star, the killer slashed his own throat using a 'shiv' in his cell on Monday morning. 

The 42-year-old murderer plunged the object into his neck six times in the Midlands Prison at approximately 3am. 

He was saved only after a prisoner officer noticed him bleeding out on the floor of his cell, the Star reported. 

"This is a very serious suicide attempt," a source told the publication. "By the time the officer got to him he had already lost a huge amount of blood.

"Somehow he missed striking an artery - otherwise he would have ended his miserable life."

The source added the prison guard used blankets to staunch the blood until the nurse arrived and he was treated.

"Nash would definitely have died if the officer hadn't got to him so quickly."

He is being treated for serious wounds before being placed in a close observation cell where he is under 24-hour watch. 

Nash has been suffering in severe depths of depression since he was last month convicted of a double murder. The source said he was particularly agitated by a row he had with fellow prisoner and convicted killer Warren Dumbrell on Monday. 

He was found guilty of the "cold case" murder of two women, whose mutilated bodies were found in their sheltered accommodation in Grangegorman in Dublin nearly twenty years ago.

The 42-year-old, who is originally from England but has last addresses at Prussia Street and Clonliffe Road in Dublin, pleaded not guilty at the Central Criminal Court to the murder of Sylvia Sheils (59) and Mary Callanan (61) between March 6 and March 7, 1997.

In 2009 "a spectacular breakthrough" led to the DNA of the two deceased women being found on a black pin-striped velvet jacket belonging to Nash as part of the cold case review.

In the early hours of a March morning in 1997 the pair and their friend Ann Mernagh, who lived together in sheltered accommodation on the grounds of Grangegorman hospital , were asleep in their beds when Nash broke in through a window at the back door.

He made his way into the kitchen and rifled through the drawers to arm himself for a despicable murder.

Then he made his way upstairs where he first attacked and killed Sylvia Shields and then Mary Callanan, leaving them with horrific injuries described as "gruesome".