Crime scene photographs play an important role in investigations and documenting history. Nowadays, everyone has a pocket camera on mobile phones. For people who witness an accident or an emergency, instead of helping the victims, most people prefer capturing photos or videos. This principle is also known as diffusion of responsibility. when several people are present at an incident, and individuals believe that someone else would offer help. These photographs are bloody and horrible, but they also open a seldom-seen window into what life was like at the time. These photos of crime scenes truly bring the past to life.