This happens in Episode 3 at the start.
-Take a photo of the body-
Go to the body on the bed and take a picture.
-Move the body-
Help move the body to reveal more objectives.
-Find Traces of Blood-
1. Outside in the middle of the area
2. Go outside, then inside the building in the middle (bathroom). Open stall and take picture of mop inside the bucket.
3. Go inside the third building which is an office and take a picture of the blood on the floor.
4. Inside the office area, check the corner of the desk
-Look for signs of a struggle-
1. Click on the big grey closet and open it. Take a picture of the mess
2. While outside, move the obstacle to take a picture of a broken chair
3. In the third area which is the office, take a picture at the bottom of the flag
4. Click the wood thing next to the couch in the office area. Click the couch to move it. It's a broken chair leg. Take a picture.