Crime Solvers Central
Crime Solvers Central
295 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

Any updates on this case? Let us know!
In the quiet community of Sebewaing, Michigan, a devastating series of events unfolded, leaving a family shattered and a town in mourning. Katelyn 'Katie' Alexandria Bonini, a 21-year-old female student at Saginaw Valley State University, was found deceased on February 15, 2018. The grim discovery was made after a concerned family friend requested a well-being check at the Bonini residence.

Authorities entering the home found a tragic scene. Katelyn, along with her 60-year-old mother, Margo Bonini, had been fatally shot. The investigation by the Sebewaing Police Department and Michigan State Police concluded that Katelyn and her mother were victims of a double murder-suicide. The perpetrator was identified as Katelyn's 61-year-old father, Bob Bonini. It is believed that he shot his wife and daughter before turning the gun on himself.

The motive for the horrific act remained unclear, leaving friends and the wider community to grapple with the sudden and violent loss. Bob Bonini was known in the community as the owner of a carpet- and tile-cleaning company, and Margo worked at the local library. There were no prior reports of domestic violence at the family's home, adding to the shock and disbelief that followed the incident. Katelyn, who had been adopted from Russia at 10 months old, was remembered as a bright young woman with a future ahead of her, pursuing a degree in psychology. The investigation concluded that the shootings likely occurred 12 to 24 hours before the family was discovered. With the perpetrator deceased, the case was closed.