CBS

Published: Apr 16, 2014 6:58 PM EDT

TAMPA, Fla. (AP) - The Florida family of a woman slain during the mass shooting at the Washington Navy Yard has filed a wrongful death lawsuit in Hillsborough County Court.
    
The lawsuit on behalf of the family of Mary DeLorenzo Knight was filed Wednesday. The lawsuit was originally filed in federal court in Tampa, but lawyers say it was refiled in state court due to jurisdictional issues.
    
Mary DeLorenzo Knight was one of 12 people killed by Aaron Alexis on Sept. 16, 2013 before he was killed in a shootout with police.
    
The lawsuit says the contractor that Alexis worked for should have told the Navy about his prior, and documented, mental health problems and that the Navy should not have given him security clearance.

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