Layla Stahl was found dead in her bedroom in the 600-block of 15th Place on April 20, 2022, the sheriff's office said.
At the time, her cause and manner of death were undetermined, officials said.
In July of 2024, the Kenosha County Sheriff's Office investigated the girl's mother, Christina L. Torchia, 33, for attempting to solicit the homicide of another individual, police said.
Torchia later pleaded guilty to solicitation of first-degree intentional homicide.
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In early 2026, the sheriff's office reexamined her daughter's death. On March 12, they spoke with Torchia, during which police said they identified numerous inconsistencies and statements contradicted by evidence.
Wisconsin officials then changed Layla Stahl's manner of death to homicide, and her mother was charged with first-degree intentional homicide.
"Time does not erase responsibility, and it does not diminish our duty to seek justice. This case remained a priority for our investigators, even when the answers were not immediately clear. Through persistence, professionalism, and a refusal to give up, we are now in a position to move forward with charges. Layla deserved better, and we will continue to pursue justice on her behalf," Sheriff David Zoerner said in a statement.