On the morning of May 5, 1988, Kassaundra Denise Williams Patterson, 33, was gone from her apartment at the Silver Leaf Apartments in Haskell, Oklahoma. Her three children woke to find their mother missing and her personal belongings, including her purse, left behind — a departure described as highly uncharacteristic. There were no signs of forced entry or a struggle at the unit.

Kassaundra was an enrolled member of the Muscogee Nation and of Black and Native American heritage, with black hair and brown eyes. A mysterious call to her mother on Mother’s Day 1989, during which the caller hung up immediately and may have said Momma or Mom before the line went dead, was never confirmed to be Kassaundra. The Haskell Police Department investigated but few leads emerged and the case grew cold.

If anyone knew Kassaundra, her routines, associates, or saw anything in Haskell around May 1988, please share what is known.