On the night of February 19, 2016, a tragic series of events unfolded in rural Edgerton, Missouri, that devastated a local family and shocked the community. Firefighters were dispatched to a property on Buena Vista Road after neighbors reported a large fire. Upon arrival, emergency responders found a residential home fully engulfed in flames. While battling the blaze, authorities discovered the bodies of four individuals outside the residence.
Among the victims was Shirley Denham, an 81-year-old female, who was found deceased alongside her husband, Russell Denham, their granddaughter, Heather Ager, and their infant great-grandson, Mason Schiavoni.
Investigators quickly determined that the fire had been set intentionally to cover up a quadruple homicide. Autopsies revealed that Shirley and her family members had all been shot in the head before their bodies were set on fire. A disturbing detail emerged during the investigation when authorities found pennies placed on or near the eyes of the victims, a ritualistic act that prosecutors later linked to a specific film favored by the suspect. The family dog had also been shot and burned at the scene. The investigation soon turned toward a relative who had lived at the residence but was missing from the scene, along with the elderly couple's vehicle.
Two days later, law enforcement officers in Arizona encountered the primary suspect, Grayden Lane Denham, the grandson of Shirley and Russell. He was found walking naked near the town of Seligman. Police located the stolen vehicle nearby, which had been fitted with stolen license plates. Inside and around the vehicle, investigators found clothing that tested positive for gunshot residue and fuel, linking him to the crime scene in Missouri. Grayden was taken into custody, eventually facing extradition back to Platte County to face charges for the murders of his four family members.
The legal proceedings spanned several years, delayed in part by mental health evaluations. During the trial in late 2021, prosecutors presented evidence that Grayden had killed his family and torched the home following rising tensions and arguments within the household. Witnesses testified about his behavioral changes and drug use prior to the killings. In December 2021, a jury found him guilty on four counts of first-degree murder, four counts of armed criminal action, second-degree arson, animal abuse, and stealing. In February 2022, the judge sentenced him to four consecutive life terms without the possibility of parole, plus an additional 115 years, ensuring he would remain incarcerated for the rest of his life.
