A man in a blue sweatshirt walked up to Tufts University PhD student Rumeysa Ozturk on Tuesday evening and held up his hand to get her attention. “Hey, ma’am, can I talk to you for a second?” ...

Tufts University’s PhD student Rumeysa Ozturk ... Surveillance footage shows a man with his head covered by a black hooded sweatshirt approaching her and grabbing her wrists.