"Scenario" In the city of Linkston, there lived a group of friends. They were friends from childhood and they loved going to trips. Chris, Karl, John and David were the four friends. They met every weekend. David, who was a police officer, couldn’t meet them every weekend as he had to solve cases and was busy with his work. One day, when David was in his station, the head constable came running and said, “Sir, a body is found near the train track.” His friends were waiting for him but he couldn’t go again. David and his constables went to the train track and found the body. They sent it to the forensic lab to get more information. It was David’s sister body. David suddenly got reminded of all the precious time he had spent with his sister, Angel. He was furious and wanted to kill the person who had killed Angel. The investigation started. He told his friends about this and said, “Please try to get more information....