Naperville, Illinois – A DuPage County jury has found a Naperville woman guilty in the 2020 shooting death of her boyfriend, concluding a case that stemmed from a domestic argument that turned fatal.
According to the DuPage County State’s Attorney’s Office, the jury returned its guilty verdict against Rosa Lagrone, 40, after a four-day trial and approximately two and a half hours of deliberations. Lagrone was found guilty of murdering Darnell Manns, who was shot during an argument at their home in November 2020.
Prosecutors said the shooting occurred around 2:16 p.m. on Nov. 6, 2020, at a residence in the 0–100 block of 25W Kesswick Lane in unincorporated Naperville. Authorities alleged that an argument escalated when Lagrone shot Manns with a pistol, striking him in the arm and torso. Investigators later determined the bullet passed through Manns’ arm and lodged in his spine.
Officials said Lagrone allegedly used Manns’ Facebook account to livestream video of him lying on the floor while she spoke in the background and blood pooled nearby. Manns was transported to a local hospital, where he later died from his injuries on Nov. 9, 2020.
Court records show Lagrone was initially charged with one count of attempted murder, one count of aggravated battery with a firearm, and one count of domestic battery. She appeared in bond court on Nov. 8, 2020, where bond was set at $1.5 million, requiring 10% to post.
On Nov. 19, 2020, prosecutors indicted Lagrone on five additional counts of first-degree murder. A subsequent motion to deny bail or increase bond to $3 million was denied, and Lagrone remained in custody after failing to post bond.
“This verdict holds Rosa Lagrone accountable for the murder of Darnell Manns,” DuPage County State’s Attorney Robert Berlin said, thanking jurors and prosecutors involved in the case.
Lagrone’s next court appearance is scheduled for April 1, 2026, for the return of the pre-sentence report and post-trial motions.
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