Joe also killed Beck’s best friend, Peach (Shay Mitchell) when he learned that Peach had feelings for Beck. He made her death look like a suicide. This slaying ultimately gave Beck an idea for a book, and she scored a deal with a publisher.
Eventually, in the penultimate episode of the first season, Beck finally realizes that Joe is a complete creep. She finds his hiding spot in the bathroom ceiling, and she also locates her old phone, as well as Peach and Benji’s phones.