Police found 49-year-old Jarosław Z. dead in Łuków apartment after heavy drinking party. 36-year-old Marta M. stabbed him eight times in both legs including thighs damaging artery. Massive hemorrhage killed victim. Marta and Jarosław were former couple. Prosecutor charged Marta with murder. Trial court convicted her of murder sentencing 10 years prison. Appeal court overturned murder conviction. Appellate court ruled serious bodily harm causing death. No proof of intent to kill. Expert ruled out two-hour delay before help call. Witness said she left room only briefly. She screamed for help on seeing blood. Court noted her pleas contradicted murder intent. Sentence details unchanged on appeal.