Who Killed Aileen Seiden in Room 15?

Who Killed Aileen Seiden in Room 15?

Available on CBS, Paramount+, Prime Video, Hulu
Aileen Seiden's beaten body is found near a highway; the next day, a bloody motel room is discovered nearby, prompting investigators to see if the two are connected.
Starring Erin Moriarty, Peter Van Sant, Natalie Morales