The teenager who pleaded guilty to killing his ex-girlfriend and leaving her body in a Fairfax County, Virginia, park displayed no emotions when describing the murder during a videotaped police interview.

The video, obtained by NBC Washington, shows Nebiyu Ebrahim, 18, calmly describing to police how he killed 16-year-old Jholie Moussa in January 2018.

Erahim, who was 17 at the time of the murder, told police that he started choking Moussa after he flew into a “blind rage.”

Over the course of the five-hour interrogation, the teenager described in great detail how he strangled his ex-girlfriend.

He told police that he used an MMA-style chokehold on Moussa and didn’t stop, even though he knew he could.

Moussa’s body was found two week later after the murder in a shallow grave in Woodlawn Park, less than a mile from her home and walking distance from where Ebrahim lived with his parents.