POLK COUNTY, Fla. - In a highly controversial verdict, a Florida jury found 17-year-old Collin Griffith not guilty of the first-degree murder of his mother, Catherine Griffith, following more than 11 hours of deliberation.

Collin Griffith was acquitted on all charges in his mother's death after the jury found insufficient evidence.

A teenager is standing trial on charges he murdered his mother just 18 months after he killed his father, but the defendant says he acted in self-defense both times. Collin Griffith, 17, appears in court on the first day of his murder trial.

A 17-year-old from Florida was acquitted on first-degree murder and kidnapping charges in the stabbing death of his mother more than a year after he was found to have killed his father in self-defense.

Collin Griffith will not spend time in prison after deputies accused him of murdering his mother a year after he shot his father to death, claiming self-defense.