PICAYUNE (AP) — Investigators have drained a Mississippi pond where a woman was found dead.

The Picayune Item reports that an autopsy showed 43-year-old Jodi Wilson died of blunt force trauma and drowning. Her body was found Aug. 7 in a pond in Pearl River County, near the Louisiana state line.

The sheriff’s department and a volunteer fire department drained the pond Wednesday and Thursday. Sheriff David Allison says investigators are sifting through the mud to look for anything that might have been used to kill Wilson.