How the latest DNA technology led police to a suspected killer more than 45 years after a woman’s death. See how at-home DNA tests can even help catch perpetrators by tracing their family trees. Plus, the case using diabetes as a defense for a violent attack – can low blood sugar really cause someone to kill?

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.

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