Williamson County renews push for answers in 1999 teen killing

Authorities hope fresh information from anyone who remembers Sonya Wallace or the time of her disappearance could finally bring answers and justice.

Mar. 22, 2026 at 5:40am

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A long-unsolved 1999 killing in eastern Williamson County is back in the spotlight as investigators and a grieving mother renew their plea for tips. Sonya Wallace's disappearance and death remains a mystery, with authorities hoping new information from the community could help solve the case.

Why it matters

The unsolved killing of Sonya Wallace has haunted her family and the Williamson County community for over two decades. Renewed efforts to find answers and bring justice could provide closure for her loved ones and potentially uncover important details about the case.

The details

Authorities say Sonya Wallace, a teenager, was killed in 1999 in eastern Williamson County, about 40 miles east of Round Rock. The case has gone unsolved for over 20 years, but investigators and Wallace's mother are now renewing their plea for anyone with information about her disappearance or the circumstances surrounding her death to come forward.

  • Sonya Wallace was killed in 1999.

The players

Sonya Wallace

A teenager who was killed in Williamson County in 1999, whose case has remained unsolved for over two decades.

Williamson County authorities

Investigators who are renewing their efforts to solve the 1999 killing of Sonya Wallace and are asking the public for any information that could help bring answers and justice.

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The takeaway

The unsolved killing of Sonya Wallace has haunted her family and the Williamson County community for over two decades. Renewed efforts to find answers and bring justice could provide closure for her loved ones and potentially uncover important details about the case.