u/kmh1110

When Acosta is in the diner storage and the music is playing, she picks up something (maybe a hoodie?) and looks shocked/surprised. She isn’t shown again on the episode.

Seems like maybe she recognizes something that belongs to someone she knows in the real world. Unsure if it is family, friend, or someone having to do with her policing career (the one that got away? The reason she became a cop?). Hoping it is someone we have seen/met before, but they would have to have died before Acosta arrived.