According to the Daily News Tribune, the widow of a firefighter who died battling a fire in a West Roxbury, Massachusetts Chinese restaurant has filed a lawsuit against the eatery, along with its cleaning service and building owner. The plaintiff claims that negligent maintenance, including a buildup of grease in a kitchen exhaust pipe, were to blame for the blaze. Two firefighters were killed by the fireball that formed when the restaurant grease combusted. The Daily News Tribune reports that the fire had been smoldering in the ceiling for at least 60 minutes prior to the fire department being summoned. 12 other firefighters were injured in the incident.