Analysing the first black box.

So i was analysing the Picture of the first black box and it wasnt fully censored there was something red that reminded me of blood... and looking at the size of the box I think it's a dead animal more specifically a dead dog. My theory is that care and Mike are brother and sister. They had a dog that ran away ( like explained in the signs on petscop1) Mike ran after it to the road and got hit by a car he and the dog died. Care took the dog to her room baceause she didn't want to lose him to. Her parents got depressed and started abusing her. She was stressed everyday and started pulling out her eyebrows. Then she hid in her home and everyone thinks she's missing. Or she died because if the abuse by her parents and they said she was missing. Here are the images: https://imgur.com/a/iSpew https://imgur.com/a/ff070 Sorry for the chaotic post I just wanted to clear my mind...

EDIT: What I mean with explained in petscop1 is that there were 2 sign where it said that pets might be scared but that you had to gain there trust and that they might run but theure just looking for a home. Or something like that.