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.

Ryan Murphy returns to Netflix Sept. 19 with the second installment in his true crime anthology series, 'Monsters: The Lyle and Erik Menendez Story.'

Chloë Sevigny brought edginess to the Los Angeles red carpet premiere of her new collaboration with Ryan Murphy “Monsters: The Lyle and Erik Menendez Story” on Monday. The show is the second installment of Murphy’s “Monster” anthology series.

Ryan Murphy is bringing the infamous story of Lyle and Erik Menendez to Netflix. The second installment of 'Monsters' will be released on Netflix on September 19, and the star-studded cast reunited for the premiere of the series at the Egyptian theater in Los Angeles.