GREENVILLE, OH – A local man received a prison sentence of 14 to 19 and a half years after admitting to fatally shooting his former girlfriend in her own home earlier this year, sidestepping a potential life sentence through a plea agreement with prosecutors.

Zachery S. Gilbert, 25, stood before a Darke County judge on Monday and pleaded guilty to involuntary manslaughter, along with a firearm specification, in the death of 34-year-old Brianne Otley. The conviction stems from a September incident in which Otley, a mother of three, was killed in her children’s bedroom.

Gilbert had originally faced more severe charges, including murder and tampering with evidence, that could have locked him away for life. However, mere hours before a scheduled bench trial, he reached a deal with prosecutors to plead to the lesser charge. The agreement drew sharp criticism from members of Otley’s family, who voiced dissatisfaction in court, calling the outcome a betrayal.

Authorities were called to Otley’s Greenville residence on the night of September 26 after a report of gunfire. Responders found Otley suffering from at least one gunshot wound. Efforts to save her life at the scene were unsuccessful, and she was pronounced dead just after 9 p.m.

Following the shooting, Gilbert fled on foot. Law enforcement from multiple agencies quickly coordinated a search, establishing a perimeter that led to Gilbert’s arrest within hours of the crime. Police reported that Gilbert later admitted to firing the fatal shot, saying his finger was on the trigger when the gun discharged in the bedroom.

Investigators learned that Gilbert and Otley had argued the night of the shooting. Court records indicated that Gilbert believed Otley, who had recently ended their relationship but allowed Gilbert to stay in her home temporarily, was involved romantically with someone else. Interviews suggested that Gilbert had been drinking prior to the confrontation.

Prosecutors, citing Gilbert’s prior history with substance abuse and reported noncompliance with previous court-ordered treatments, advocated for the highest allowable sentence. They emphasized the ongoing threat he posed and underscored the lasting trauma inflicted on Otley’s family and young children.

During the sentencing hearing, several of Otley’s relatives spoke emotionally about the impact of her loss and their disappointment in the plea deal. Her mother, Michelle Otley, told the judge she was firmly opposed to the agreement, describing feelings of abandonment by the justice system.

Gilbert, who confessed to his role in the shooting during the investigation, will be transferred to a state correctional facility to begin serving his sentence. He could spend nearly two decades in prison under the terms set by Judge Travis L. Fliehman.

Otley’s loved ones continue to mourn her death, describing her as a resilient person whose life was cut short in the presence of her children. The case underscores tensions that often surround plea agreements in violent crime cases, as families seek justice while the courts balance legal practicalities.

No further charges are pending in connection with Otley’s death at this time. Her three children remain in the care of family members as they navigate the aftermath of their mother’s passing.