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WASHINGTON (WUSA9) -- Friday, Metropolitan Police Department officials confirmed that a woman found dead in the 800 block of Channing Place in D.C. on Wednesday was a missing person.

Police are expected to give an update on the case on Friday afternoon.

Friday, police say that 75-year-old Mary Houston was found dead Wednesday at 11:12 a.m. Wednesday. A Silver Alert had been issued for her.

She was last seen at a restaurant on Georgia Avenue, according to WUSA9's Scott Broom on Friday. We're told she did not return from the restroom.

Houston was later found dead near a Northeast home.

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The results of an autopsy on Thursday listed the cause of death as blunt force injuries and asphyxiation. The manner of her death was ruled a homicide.

According to WUSA9's Scott Broom, Houston was a retired social worker with Alzheimer's disease. She was remembered as an "Ambassador for DC" by co-workers at Old Town Trolley/DCDuck Tours.

Houston had lived in D.C. for 40 years, Scott Broom reports.

Anyone with information about Houston's death is asked to call the police at (202) 727-9099.

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