MONTAGUE COUNTY, OK -- A Montague County woman is under arrest in connection with her mother's murder.
The Sheriff's Office confirms that 51-year-old Tina Sinclair is under arrest for the murder of 68-year-old Bonnie Gresham.
Investigators have been at the scene collecting evidence since last Friday.
Sheriff Paul Cunningham says it all started earlier this month with a missing person's report.
Investigators won't reveal where Gresham's body was found.