Police arrested a 36-year-old man they say robbed a Medford convenience store with a folding knife.
Anthony Blank was caught on video last week grabbing cash at Crown Market, in the 1100 block of Progress Drive, and running away, officers say.
A witness identified Blank to police after seeing a photo of him on social media.
Blank was spotted Monday in a Winco parking lot and arrested.
Up until his arrest, Blank was believed to be living a transient lifestyle and staying at various motels, the police department says.
Blank faces charges of robbery first-degree and unlawful use of a weapon, according to Medford police.