Ian Davies death: Paul Mapps guilty of Trinant murder
A man who stabbed a friend to death after a failed romance with his sister has been found guilty of murder.
Paul Mapps, 26, stabbed Ian Davies, 27, at a house party in Trinant, Caerphilly county.
The court heard the men had been good friends until Mr Davies starting dating Mapps' sister Dawn, 30. After they broke up, the relationship between the men became "somewhat volatile".
Mapps was found guilty by a majority verdict at Cardiff Crown Court.
The trial jury heard how Mapps and Mr Davies had been drinking together shortly before the attack.
Mapps was heard repeatedly saying he had an issue with his friend which needed "sorting out".
Mapps, of Trinant, had denied murder, but was found guilty by a 10-2 majority.
Det Ch Insp Richard Williams, of Gwent Police, said: "Since Ian's death Paul Mapps has sought to absolve himself of any responsibility by first claiming someone else was responsible, and when this was disproved, claiming he was acting in self-defence.
"His attempts to deceive the court have failed and I hope the verdict brings the family some closure."
He will be sentenced on 6 August.