Marguerite Chambers was 60 and a long-term resident of Alpine Manor nursing home in Walker, Michigan, when she was killed in the winter of 1987. She had lived at the facility for four years and suffered from Alzheimer’s disease that left her unable to communicate; her husband Ed visited frequently. Her death was found the next morning and at first was thought to be from natural causes.

Allegations about Marguerite’s death and the deaths of four other elderly female patients came to light in 1988 when Catherine Wood’s ex‑husband reported details to police. Wood later gave interviews in which she incrementally confessed and implicated Graham as the primary instigator. Both aides were arrested in December 1988; Wood pleaded guilty to second‑degree murder and conspiracy and was sentenced to 20 to 40 years, while Graham was convicted on five counts of first‑degree murder and one count of conspiracy and received life without parole.