People spoke to Andromeda in dreams. England was possessed by her. People keep finding crap in her house. At least some part of her is a ghost in the system.

The cat was dead. It's the message we got when we found Sung's death tape. His house is empty now, like he got wiped out. But people still met him in dreams. All these cards we're finding lately are leading up to Andromeda's death. We'll probably find out how she and Winter died soon.

Maybe it was in the apartment with the knives.