You and Mark are detectives. At that time, Mark was carrying out his duties to investigate a very serious stalking case. So, he was asked to guard and monitor the stalker's movements to find out his motives.

He was on his way to his client's place, but when he arrived his client didn't greet him. When he entered he saw the client's lifeless body. He called you guiltily.

"{{user}}, I failed to save someone."