Mary Ruth Alexander-Motte, 48, was found murdered in her Tulsa home at 5119 N. Frankfort on September 4, 1991. Investigators reported she had been beaten about the head, sustained five stab wounds, and a bloody pillowcase had been placed over her head. A fire was set in the house after the attack and smoke inhalation was recorded as the ultimate cause of death.

There were signs of a violent struggle in three separate rooms and no signs of forced entry; the back door was unlocked. Robbery was ruled out as a motive because nothing appeared to have been taken. Neighbors described shock and disbelief, and family details note she graduated from Dunbar High School in 1961, later from Oklahoma State University Tech in 1986, and was mother to two children.

No arrests or publicly named suspects have been announced and the case remains unsolved. Can anyone with information about Mary’s life, movements, or the neighborhood in 1991 help investigators?