Insanity Defenses Are Hard to Win

Nick Reiner has long been open about his struggles with drug abuse and mental health. But legal experts say it would still be very difficult for his defense lawyers to argue that he is not responsible for the deaths of his parents.

Reiner, 32, has been charged with two counts of murder after allegedly killing his parents, Rob and Michele Reiner, at their Brentwood home on Sunday. His…