Darnell Manns, a 27-year-old African American man, was shot on November 6, 2020, during an argument with his girlfriend at her home in unincorporated Naperville, Illinois. The dispute with his girlfriend and fiancée, Rosa Lagrone, began after she learned he was in a relationship with another woman. As Manns attempted to pack his bags to move out of the townhouse on Keswick Lane, the argument escalated. Lagrone shot Manns once with a pistol. He was transported to a local hospital, where he died from his injuries three days later, on November 9, 2020.
According to prosecutors, the bullet from Lagrone's gun went through Manns' arm and lodged in his spine. In the moments after the shooting, while Manns lay speaking on the floor in a pool of blood, Lagrone used his Facebook page to start a live video chat with the other woman. The video, which had no audio, showed Manns on the ground.
It also showed someone believed to be Lagrone kicking him at least twice.
Lagrone, who was 34 at the time, was arrested and initially charged with attempted murder, aggravated battery with a firearm, and domestic battery. She told investigators the gun had gone off accidentally. Her bond was set at $1.5 million, and she was held at the DuPage County Jail. After Manns died, a grand jury indicted her on five counts of first-degree murder on November 19, 2020. A motion by the state to deny her bail or increase it to $3 million was denied.
The case went to trial before Judge Daniel Guerin. On February 6, 2026, after four days of testimony and about two and a half hours of deliberation, a jury found Rosa Lagrone guilty of first-degree murder. On August 5, 2026, Judge Guerin sentenced her to 38 years in the Illinois Department of Corrections. Lagrone is required to serve 100% of her sentence before she is eligible for parole. The case was officially closed as of August 2026.
