Answer:
Here's my imagination :D
Step-by-step explanation:
As I walked in I saw bloody hand prints on the floor. This could have been the victim or the murderer. But there is no knife or gun anywhere. The victim is in the middle of the living room. Apparently the husband died. They have escorted the wife out of the building. We are expecting the room. We found finger prints on the door knob. So this murderer won't be very happy soon.