사건 당시 사격장 내부에는 A씨 외에 다른 손님은 없었으며 사격장 사장과 종업원 등 모두 4명이 있었다.
During the incident, there were no customers inside the shooting range other than Mr. A, and there was a total of 4 people, including the owner of the range and staff members.