HAYS, Kan. (AP) — A judge has ruled that a purported updated will from a Kansas multimillionaire was not valid and the man’s former caretaker will not receive most of his $21 million estate.

This week’s ruling by Kansas Senior Judge William Lyle Jr. is a victory for the Fort Hays State University Foundation, the primary beneficiary of the estate of 98-year-old Earl O. Field, of Hays.

Field’s former caretaker, Wanda Oborny said she found a letter typed on Field’s stationary after his death. She says the letter said Field decided to give most of his estate to her, rather than to the foundation.

Steve and Kathy Little, of Hays, who said they witnessed Field sign the new will, died in a murder-suicide in August 2015.