CHARLOTTESVILLE, Va. (WJZ) — An update is expected Tuesday in the Jesse Matthew case.

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Matthew is on trial for the 2005 sex assault of a woman in Virginia. He is also charged with the abduction of UVA student Hannah Graham last year.

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Sources tell the Richmond, Va. CBS affiliate WTVR that Jesse Matthew has been charged in the first-degree murder of Graham.

A press conference with officials is scheduled to begin at 11 a.m.

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Stay with and WJZ-TV for the latest.