CORONA, CA — The parents of a 32-year-old developmentally disabled man who was fatally shot by an off-duty police officer inside the Costco store in Corona sued the city of Los Angeles and the officer Wednesday.

The Los Angeles Superior Court lawsuit, filed by Russell and Paola French, the father and mother of Kenneth French, alleges battery, negligence, civil rights violations and both intentional and negligent infliction of emotional distress. The complaint seeks unspecified damages. "If it was anyone but a police officer who went into a Costco and fired 10 shots (and killed somebody), they would've been arrested and charged with murder," said Dale Galipo, an attorney for the French family.

Rob Wilcox, a spokesman for the City Attorney's Office, said his office will review the complaint, but he had no further comment. Officer Salvador Sanchez is named as a co-defendant in the suit, which states that the gun he used to shoot French was issued to him by the Los Angeles Police Department.

"If Salvador Sanchez were not a police officer, then he would not have been authorized to carry a concealed weapon in his waistband inside of the Costco," according to the complaint. In addition, Sanchez's training in the use of deadly force was "totally inadequate and inappropriate," the suit alleges.

Kevin French, the decedent's younger brother, said Kenneth was "just a loving, caring human being who never hurt anyone."

Corona police said Kenneth French attacked Sanchez without provocation inside the store on June 14, and that Sanchez was holding his year-old son at the time.

The Frenches were shopping when they approached a food-sample table with sausages. Sanchez was also at the sample table, holding his son, officials said. Galipo and the French family have conceded that Kenneth French shoved Sanchez to the ground for unknown reasons. Sanchez responded by announcing that he was a police officer, pulling out a gun and opening fire.