© Family Handout
Jada Beth Williams, 5.
Matthew Kaleb Pierson, 18, admitted to leaving Jada Beth Williams beaten and blooded in the garage of the girl's grandmother's house, police say.

An Ohio teenager is in jail on $500,000 bond after he confessed to brutally killing his 5-year-old niece with a scythe, WXIX-TV reported.

Jada Beth Williams' body was found lying in a pool of blood in the garage of a home in Jackson Township.

Tina Williams, the little girl's grandmother, made the gruesome discovery and called 911, telling the dispatcher that Jada "was here with the guy I live with and my grandson, and she is dead."

In a recording of the call, obtained by the Fayette Advocate, Williams says the girl is "covered in blood."

© Courtesy of Fayette Advocate
Matthew Kaleb Pierson, 18, at a court appearance.
Matthew Kaleb Pierson, 18, told police he killed his niece a day earlier.

He confessed to beating Jada with the scythe, a grass-cutting tool with a curved blade, and placing her body in the garage, according to an affidavit.

The crime scene where Jada Beth Williams was found.
At a press conference, Highland County Sheriff Ron Ward said she apparently died from "multiple blunt force trauma to the head, neck and face." Complete autopsy results are pending.

Pierson was charged with murder Tuesday.

Shawn T. Williamson, 38, the owner of the home where Jada was found, was held as a person of interest but eventually released.

© Courtesy of Fayette Advocate
Jada’s body was allegedly found on the floor of the garage, covered in blood.
Ward said other people could be charged in connection with her murder, and the charges against Pierson could be upgraded.