Zhiwen Yan, 45, was driving by on his scooter in the vicinity of 108th Street and 67th Drive to deliver food when the suspect fired shots in the area, hitting the victim in the chest, according to authorities. Yan worked at Great Wall restaurant for years. His many customers visited on Sunday night. They left flowers and notes. The delivery worker was beloved in the neighborhood, customer Andreas Villa said. Yan called every customer "my friend."