Teen Accused of Murdering Mom a Year After Dad's Killing

A 17-year-old is behind bars after being charged with stabbing his mom to death. Cops say Collin Griffith stabbed her in the neck with a kitchen knife but he is claiming it was an accident. Last year, Griffith also shot his dad dead inside their home. He claimed his dad attacked him and he opened fire in self defense. There were no witnesses and he was released after prosecutors said there was a lack of evidence to bring him to trial. Inside Edition's Ann Mercogliano has more.