Man sentenced to life imprisonment for murdering his wife

A Cardiff man who stabbed his wife to death in a car park has been jailed for life at Cardiff Crown Court. 

Thisara Weragalage, 38, stabbed his wife, Niwunhellage Dona Nirodha Kalpani Niwunhella (known as Nirodha), multiple times while they were in a residential car park in the Riverside area of Cardiff.

The couple had been separated for months but on the morning of 21 August 2025, Weragalage went to the car park knowing his wife parked her car there. He had bought knives the day before and used one of them to kill Nirodha. 

Emma Davies of the CPS said: “Thisara Weragalage planned his attack, visiting the area several times leading up to it and buying the murder weapon.

“His premeditation was a significant factor in this shocking murder.

“The strong evidence presented by the Crown Prosecution Service demonstrated his intention and resulted in a guilty plea.

“The Crown Prosecution Service are working together with the police to build strong cases against those who perpetrate violence against women and girls, and our prosecutors are making sure more victims of these abhorrent and devastating crimes receive the justice they deserve.

“Our thoughts remain with the family and friends of Nirodha who have suffered a tragic loss.”

Thisara Weragalage was sentenced on 20 February 2026 to life imprisonment and ordered to serve a minimum of 23 years and nine months.