An Oklahoma woman who was the last person to have seen two women and a girl who disappeared in 1992 has been charged in their deaths.

Court records show Beverly Noe faces three counts of first-degree murder. The State Bureau of Investigation says the 67-year-old Bristow woman was arrested Friday.

The bodies of Noe's former daughter-in-law Wendy Camp, Camp's 6-year-old daughter and a sister-in-law were found last year in a makeshift grave on property near Jennings that once belonged to Noe's brother and mother.

Investigators say Noe's brother told them he dug the hole for a septic tank and that after the women and girl disappeared, his mother asked him to fill it in and sprinkle the ground with pepper to cover up any odor. The mother died in 2011.