Parricide

Parricide is the act of killing one's own parents.

On Criminal Minds
Parricidal killers featured on Criminal Minds
 * Season Four
 * George Foyet ("Omnivore", "To Hell and Back, part 2", and "100") - Also appeared in Season Five.
 * Season Seven
 * Luke Dolan ("Dorado Falls")

Real-World
real-world parricidal killers.
 * Kipland Kinkel

Further Readings

 * Wikipedia's Article