A Providence County grand jury has determined that a city police officer was justified when she shot and killed a Pawtucket man brandishing a BB gun.

Attorney General Peter Kilmartin announced Tuesday the grand jury had completed its investigation into the shooting death of Dominique Silva by Officer Julianne Borsari.

Authorities say Borsari fatally shot the 24-year-old Silva on March 24 after Silva pointed a gun at her during a chase. Silva's weapon turned out to be a BB gun. It's unclear whether Silva fired the weapon.

A police report shows officers were responding to a report of an armed drug robbery.

Silva's family members held a peaceful demonstration last month in front of City Hall, saying they were seeking more information about the night Silva was shot.