Girl, 13, inflicted more than 140 knife wounds on victim, murder trial told

Forensics officers outside a house in Wellingborough that was damaged by fire. A thirteen-year-old girl, has been charged with murder after body of a woman was found in the property. Picture date: Wednesday March 12, 2025. - (PA Archive)

A 13-year-old girl accused of murdering a woman in a pre-planned stabbing inflicted more than 140 wounds on the victim, a jury has heard.

Jurors were told the teenager had conducted online research before the killing, while 43-year-old Marta Bednarczyk was probably dead before her body was burnt in a fire at a terraced property in Wellingborough, Northamptonshire, in March.