September 28, 2013 1:30 pm How Pet DNA Can Help Solve Crimes Police are turning to a new tool to solve crimes — using pets and their DNA. One lab is helping catch killers across the country. Elizabeth Wictum with the Veterniary Genetics Lab at UC explains how. US & World Videos 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 2:05 Whoopi Goldberg reveals who will inherit her fortune