1 The silhouette

After another hectic day when I went back home and saw a silhouette on my couch I thought it was my dresses piled up but more the closer I went I found something weird about the silhouette and switched the lights on. The moment I switched the lights I found blood spills all over the couch, the silhouette, the man was bleeding. As l went near him to check his pulse, the moment I touched his wrist, the moment I saw his pale face was the when I realized that he was dead. I ran immediately to the living room to get the cops. The cops, they were accompanied by the forensic department, as soon as they arrived they started clearing the corpse and were searching for evidence or something about the culprit. The cops tried investigating me but I didn't give any answer because my mind was full of thoughts like, Who's the culprit? Why did he kill this man? Why of all places it's my house? Do I know the culprit? These were the only thoughts running all over my mind. But, what really is the reason?