William Warrington, 40 of Cheltenham admitted manslaughter by reason of diminished responsibility of his divorced parents Clive Warrington, 67 and Valerie Warrington, 73. Warrington denied the charge of murder but admitted killing both his parents during a hearing at Bristol Crown Court on Tuesday. Anna Vigars KC, prosecuting, told High Court judge Mrs Justice Eady the pleas were acceptable to the Crown.
Police officers were first called to an address in Sherborne Place at 6.20am on March 2 where they found Mr Warrington’s body.
Ms Warrington’s body was found in her home in Bourton-on-the-Water, about 15 miles away from Cheltenham on the same morning.
Anna Vigars KC, prosecuting, told the court Warrington had a long history of subjecting his parents to “foul abuse”.
She said in the months leading up to the killings, he had been sending “extremely aggressive” messages to both of them.
He had been living with his mother in the years prior to the attack, but had become increasingly violent towards her when he blamed her for failing to secure planning permission to develop a piece of land attached to her property in Bourton-on-the-Water.
After assaulting her in December 2020, Ms Warrington moved her son into a multi-occupancy property she owned in Cheltenham, but he was later sectioned under the Mental Health Act at Wotton Lawn Hospital for attacking one of his housemates with a knife.
On the night of the killings, Warrington had absconded from the facility by taxi, and made his way towards his mother’s house, the court heard.
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Following their death, their other children released a statement paying tribute to their late parents.
They said: “We are devastated by the sudden and tragic loss of our parents.
“We thank everyone for their messages of love and support, which are of great comfort to us.
“We would like to request privacy at this time so that we can come to terms with what has happened and grieve in peace with the rest of the family.”