Desc: Beyond Evil: The Murder of Becky Watts: Directed by Sam Budd, Richard Mejeh, Dan Aldridge-Neil, Harriet Scott. With Alison Steadman, Mike Courtier, Kerry Daynes, Julian Druker. The story behind the murder of 16-year-old Becky Watts, who was killed by her stepbrother Nathan Matthews and his 21-year-old girlfriend Shauna Hoare in Bristol, England in February 2015.