Sister of Woman Killed in Navy Yard Shooting Plans to Sue the U.S.

A woman in Florida plans to sue the U.S. government over the death of her sister in a mass shooting at the Washington Navy Yard in September, her lawyer announced on Friday.

The wrongful death suit will be filed by Patricia DeLorenzo, who intends to seek $37.5 million from the U.S Navy and Department of Veterans Affairs for the death of her sister, Mary Francis DeLorenzo Knight.

DeLorenzo's attorney said that an administrative claim, which is the necessary first step in suing the federal government, was filed last week.

The lawsuit claims that the Navy acted negligently in granting the perpetrator, 34-year-old Aaron Alexis, security clearance and allowing him to enter the Navy Yard on the day of the shooting.

Alexis had a history of mental illness and gun violence, which should have prevented the Navy from granting him access to the premises.

Knight, a naval cybersecurity specialist, was one of 12 people killed in the shooting.