MADILL, OK - Two cousins arrested in connection with the death of Nathan Blankenship reportedly admitted to authorities they covered up the homicide.

Jessica Cornwell and Adena Beasley were arrested in Seminole County Feb. 15 for unauthorized removal of a dead body.

An affidavit states that Beasley told authorities while the three were on the way to Madill to borrow drug money Blankenship "freaked out" and Cornwell stabbed him in the chest.

Cornwell claims Beasley was the one stabbed Blankenship.

Marshall County Sheriff Ed Kent said his office has completed the investigation into the homicide and turned over their report to the district attorney.

Both Beasley and Cornwell are expected to be formally charged in Seminole County Thursday.