We see Detective Vick's taped confession. She's not so much an evil mastermind as she is a really desperate parent. YouCast user fish_n_chips turns out to be none other than her son Robert, who harbors a crush on Margot.
Not wanting to use his real identity, Robert pretends to be a waitressing student named Hannah to talk to Margot.
Hannah tells Margot that she has to leave school in order to pay for her mother's cancer treatment (appealing to the young girl herself, whose mother died from lymphoma). Margot Venmos Hannah $2,500, which she's been saving from her skipped piano lessons. Robert feels guilty about keeping the money, so he plans to meet up with her one night at Barbosa Lake to give back the full amount in cash.
When he suddenly enters her car, Margot is alarmed and tries to fight him. Robert ends up accidentally pushing her down a ravine. He freaks out and calls his mother.