A competency hearing will be held Aug. 29 for Antonio Williams, a resident of Clinton, Md., who admitted guilt to Prince George’s County police in the murders of three of his relatives.

Williams allegedly said he killed his sister, six-year-old Nadira Withers, and two second cousins, nine-year-old Ariana Decree and six-year-old Ajayah Decree at 7:30 a.m. Aug. 18 at 6406 Brook Jane Drive, the Clinton home of his mother, Andrena Kelley. A two-year-old girl was also in the house, but was unharmed, according to the Prince George’s County police.

Antonio Williams has been charged with killing three young female relatives. (Courtesy photo)

Williams was at the scene when Kelley called the police, according to police documents obtained by the AFRO. The documents state Williams waived his right to counsel during interrogation by law enforcement and admitted committing the murders.

On Aug. 21, there was a bond hearing for Williams presided over by Prince George’s County District Court Judge Patrice E. Lewis in Upper Marlboro, Md. During the hearing, shouting and profanities were swapped between family members of the slain girls and Williams’s immediate family.

As a result of the melee, Lewis ordered a competency hearing.

Prince George’s County State’s Attorney Angela Alsobrooks lamented the deaths, according to WTOP. “This was just excruciating . . . you have two fathers who were in the courtroom this morning grieving for their daughters who were expected to start first grade this week, and the other daughter, I believe, was starting third grade,” Alsobrooks said. “But instead they were here determining how to bury their children.”

Williams has been charged primarily with three counts of first-and-second degree murder.

The state’s attorney said she was surprised by the outburst in the courtroom and expects Williams to be mentally competent to stand trial.

“We’re not aware of any mental health issue that he has . . . he cooperated in the interrogation process,” she said. “We have every reason to believe that he is competent. But certainly, that is for a medical professional to make that determination.”

It remains unclear why Williams allegedly murdered the girls.