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Teen Accused of 140+ Knife Wounds in Premeditated Stabbing
18 Nov
Summary
- 13-year-old accused of inflicting over 140 stab wounds.
- Defendant researched murder sentences before the alleged crime.
- Teenager claims diminished responsibility, denies murder charge.

A shocking case has unfolded in Lincoln Crown Court where a 13-year-old girl stands accused of murder. Prosecutors allege the teenager inflicted more than 140 stab wounds on 43-year-old Marta Bednarczyk in a meticulously planned attack. The court heard that the defendant conducted online research, including the potential sentence for a minor convicted of murder, suggesting premeditation.
Ms. Bednarczyk was discovered deceased in her Wellingborough home, with her body showing numerous injuries to the face, neck, back, and extremities, inflicted with at least one knife. The prosecution contends that the killing was deliberate, highlighting the defendant's online research and subsequent lies to authorities as evidence of intent. The defense argues for diminished responsibility, seeking a manslaughter conviction instead of murder.
The defense of diminished responsibility is expected to be a central focus of the trial. However, the prosecution firmly rejects this, presenting expert psychiatric and psychological opinions that suggest the defendant's actions were not due to a mental abnormality. They argue that the intent to cause serious harm, coupled with planning and deception, unequivocally points to murder, regardless of the defendant's age.




