The stepbrother of schoolgirl Becky Watts has been found guilty of murdering her during a sexually motivated kidnap.
His girlfriend Shauna Hoare was cleared of her murder but found guilty of manslaughter.
Matthews, 28, suffocated his 16-year-old stepsister while trying to kidnap her from her semi-detached home in Crown Hill, Bristol, on February 19.
He dragged her body into the boot of his Vauxhall Zafira and drove it to the home he shared with girlfriend Hoare, 21, less than two miles away in Cotton Mill Lane.
Over the next three days, Matthews bought an £80 Mac Allister circular saw, goggles, masks, bags, cling film and tape to cut up and package Becky's body.