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DALLAS (CBSDFW) — The widow of Omar Mateen, the shooter in the Orlando nightclub massacre, has been arrested in San Francisco, sources tell CBS News.

Noor Salman is facing charges of aiding and abetting, as well as obstruction of justice in the case of the worst mass shooting in American history. She moved to the San Francisco area after the June shooting, in which her husband was killed by SWAT team members after slaughtering 49 people inside a popular gay nightclub.

Salman is expected to make her first appearance tomorrow in San Francisco.

Read more on CBS NEWS.

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