6. Bloodied Fingerprints, Broken Glasses

Although police initially regarded the shootings as a murder/suicide, evidence began to mount against David Bain. His fingerprints were on the rifle, he had blood on his T-shirt, a lens from glasses in his bedroom were found in his dead brother's room and he had injuries that were consistent with a fight. Learn more about your ad choices. Visit megaphone.fm/adchoices