A man suspected of stealing a straphanger's cell phone in late October posted a photo of himself to his victim's account.
Police said the unidentified thief took the Galaxy S3 phone from a 36-year-old man riding a southbound Q train at around 6 a.m. on Oct. 24.
Authorities said the train was pulling into the Beverley Road train station in Flatbush when the suspect grabbed the phone from its owners hand right as the subway doors opened.
The suspect made off with the phone but ended up giving investigators a lead when he posted a selfie to the rightful owner's Google account, which was still linked to the phone.
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The suspect appeared to be a young black man wearing a green beanie and red jacket.
NYPD asks that anyone with information in about the suspect confidentially call the Crime Stoppers Hotline at 800-577-TIPS or text their tips to 274637 (CRIMES) then enter TIP577.