With a guilty but mentally ill plea entered, a judge will decide prison time and treatment plan in the coming weeks.
INDIANAPOLIS — Zakii Dawson pleaded guilty but mentally ill in the death of 77-year-old Mary Sims, who was found inside her southwest-side home on Jan. 12, 2024. The agreement announced this week resolves the question of guilt while leaving sentencing and treatment placement to the court.
The plea ends a case that began when Indianapolis officers responded to a disturbance at the 2900 block of Landola Lane and discovered Sims unresponsive. Dawson, then 18, was arrested later that day. Prosecutors said the plea acknowledges verified mental illness but does not reduce potential penalties. Officials familiar with the case said they expect a prison term of roughly 45 years, subject to a judge’s decision after a pre-sentence investigation. Relatives of Sims praised investigators and asked for privacy ahead of sentencing. The defense declined to comment beyond confirming that mental health records were submitted under seal.
Investigative filings describe a compact home in disarray and note injuries to Dawson’s hands when he was booked. Family members told police Sims had let Dawson stay temporarily but later asked him to leave. A granddaughter who checked on Sims reported a strong odor of cleaners and items out of place before authorities arrived. The Marion County Coroner ruled the death a homicide. “Mary showed grace and generosity,” Prosecutor Ryan Mears said after the plea was entered. “Her family did not deserve this loss.” Police said they recovered household items for lab testing and documented signs consistent with a struggle.
Indiana’s guilty but mentally ill designation requires sentencing as if guilty while directing correctional officials to provide psychiatric care. Judges can order evaluations and set conditions for medication and counseling. It differs from a finding of not responsible by reason of insanity, which can lead to hospital commitment rather than prison. Under state criminal rules, judges must question defendants to ensure the plea is voluntary and that they understand the rights they waive and the consequences, including maximum penalties, supervision and treatment requirements. Those steps occur on the record before the court accepts the agreement.
Next, the court will schedule a sentencing hearing. The pre-sentence report typically includes criminal history, mental health diagnoses, and victim impact statements. The judge may credit jail time served since January 2024 and decide whether any portion of the sentence is suspended to probation with continued treatment conditions. Written orders will specify where Dawson will be housed initially and what treatment must be provided. Any later motion to modify placement for medical reasons would require notice and a new hearing.
Neighbors in the 55-and-older community where Sims lived said they still pause when driving past her home. “Mary waved to everyone,” one resident said, recalling evening walks and porch conversations. Outside the courthouse, a family representative thanked detectives and prosecutors and said the goal now is “a fair sentence and the care needed to keep this from happening again.” Court officials said a hearing date will be posted to the docket and notices sent to registered family members once scheduled.
The plea is on the record, and the case now moves into sentencing. A date is expected soon, with a final order to follow after arguments on treatment and incarceration details.
Author note: Last updated February 6, 2026.