Jakarta – A 12-year-old elementary school student in Medan, North Sumatra, has been identified as the perpetrator in the death of his mother, F (42), but investigators say DNA evidence has ruled out any involvement from the victim’s husband or the boy’s father. This startling development emerged from forensic analysis of the scene, raising questions about the circumstances surrounding the tragic event.
No Paternal DNA Found at the Scene
The investigation has definitively excluded the victim’s husband as a suspect in the case.
“We have checked the DNA and there is nothing that leads to the father,” stated Head of Subdivision for Chemistry, Biology, Bid, Labfor, North Sumatra Police AKBP Hendri Ginting during a press conference at the Medan Police on Monday, December 29, 2025. The forensic team examined both the knife used in the incident and bloodstains found throughout the house.
While the knife bore the DNA of both the victim and her son, AI, it also contained traces of AI’s older brother. According to investigators, the older brother attempted to disarm AI during the altercation. Further analysis revealed that blood spatter from the first to the second floor of the home belonged to the older brother, who was attempting to contact their father at the time.
“Then, blood spilled from the 1st floor to the 2nd floor. After we checked, in the room on the 2nd floor we matched the DNA, the DNA was the older brother’s DNA. In the second floor room, we didn’t find any DNA other than the older brother’s,” Ginting explained.
The knife used in the incident was identified as a common kitchen utensil frequently used by the victim, explaining the presence of her DNA on the weapon.
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See also the video ‘Tragic, elementary school student in Medan has the heart to kill her biological mother’: