By George P. Hassett

A 22-year-old Cambridge man pulled a knife on a woman at Twin City Plaza Oct. 26 after an argument inside the Dollar Store, police said.

Keith Da Silva, of 52 Fifth St., allegedly pointed the knife at the victim and said, “You got a problem?”

Da Silva and another woman started arguing with the victim over a friendship involving the victim’s daughter. The victim allegedly told the woman to leave her daughter alone.

The victim told Da Silva to mind his own business and, “I don’t know you,” police said. The argument continued outside the store, when Da Silva allegedly pulled the knife.

The victim took her cell phone out and Da Silva ran away, police said. He was stopped on Otis Street and charged with assault with a dangerous weapon.