Serial #2

Zoe arrives at the home of her school friend Jill to find the police interrogating her. Zoe scares them away. While Zoe makes coffee, Jill is murdered in her bed. Zoe checks around and gets an image of the killer from a neighbor's security camera. A button is missing from Brandon's shirt. The killer makes two glass cubes, one with a button inside, the other with a wedding ring.