A charge of second-degree murder has been added to the tampering with evidence charge filed against a Shalimar woman who Okaloosa County Sheriff's officials say shot her husband, then hid his duct-taped body behind a brick wall she built in a downstairs closet.

According to investigators, 65-year-old Barbara Wozniak was served the murder warrant late Friday night at the Okaloosa County jail, where

she was already being held on a charge of tampering with evidence in the same investigation.

Okaloosa County Sheriff’s Office deputies were called to her home on

November 15th after receiving a call about a possible homicide.

They say Wozniak’s adult children say she told them she had shot her husband, 72-year-old Alfred Wozniak, in self-defense after he tried to choke her November 10th. She said she then placed his body in a closet in the home.

Investigators obtained a search warrant and found a fabricated brick wall inside a closet under a stairway where they found Alfred's body wrapped in a tarp and duct taped.

The body was transported to the Medical Examiner’s Office where an

autopsy Friday determined Alfred Wozniak had been shot in the left temple.

OCSO Investigators say that trajectory of the bullet through the victim’s skull is not consistent with the defendant’s statement to

her children.

The investigation also revealed that on November 10th, Wozniak’s debit card was used to purchase nearly $130 in supplies from a Fort Walton Beach business, including a large tarp, plastic sheet, 20 pounds of repair mortar, Clorox, tape and other supplies. Surveillance video shows a white female matching Barbara Wozniak’s description at the check-out counter.