The 16-year-old who was gunned down following a National City house party on October 28, 2022, was identified as Gillian Del Valle, the sister of Janessa Del Valle, 19, who was shot and killed in front of their Bonita home in 2020. National City police responded to reports of a shooting in the 1800 block of East 17th Street around 11:35 p.m. on October 28 following reports that two teenagers had been shot, according to police. "There was a large crowd with a party, and when National City Police officers got here, additional assistance with the San Diego Police, Chula Vista, and the Sheriff's Department [was requested] to help secure the scene," said Lt. Derek Aydelotte, with National City police. 16-year-old Gillian Del Valle was pronounced dead on scene, suffering from gunshot wounds, according to police. MORE: https://www.cbs8.com/article/news/local/16-year-old-killed-after-national-city-halloween-party-identified/509-022c6c8d-3865-44e7-8906-1a4ed38cfb1f