The two boys killed their parents on Aug. 20, 1989, at only 18 and 21 years old. Their counsel called it self defense, while the prosecution called them greedy. Both were convicted of first-degree murder and sentenced to life in prison without the possibility of parole after two trials.

Monsters: The Lyle and Erik Menendez Story’ fictionalizes the true story of two brothers who killed their parents in 1989. See the ‘Monsters: The Lyle and Erik Menendez Story’ cast side-by-side with their real-life counterparts.