the mall in paramus, new jersey. >> no one amazingly is injured in this horrifying event that broke out over night, the gunman, a 20-year-old is dead at this hour. absolute chaos broke out at the mall behind me within a gunman entered just after 9:00 p.m. over 400 people locked inside stores for hours. but eventually, they got out safely. chaos at a shopping center in new jersey overnight. >> we heard four gunshots. and everybody was scared. everybody was panicked. we took everybody, we went in the back of the store, locked ourselves in with 13 people in total, including me. >> reporter: hundreds of police, s.w.a.t. and emergency teams swarmed the southwestfield garden state plaza mall in search of a gunman who authorities believed fired six rounds just before closing time. the suspected gunman, 20-year-old richard shoop was discovered dead just after 3:00 a.m., his body found lying in a remote area of the mall.