Motive - Season 4 Episode 10 -

The victim: Chloe Wilson. The killer: Jessica Wilson, her older sister. Chloe's "Jane Doe" dead body is found in a house under construction, she killed by several shots by a nail gun. She is eventually identified by one of the home subcontractors, Cam Riley, her boyfriend of three months, the two who were supposed to rendezvous at the house to test out the just installed amazing bathtub the evening before, with Cam needing to cancel their date. It is then that the detectives discover the Wilsons' story... Twenty years ago, Ava Wilson, Chloe and Jessica's mother, was ...