Parricide is one of the rarest crimes on earth—and now the Nick Reiner case has dragged it into the spotlight.

We break down what "parricide" really is, the four main offender types, and where Nick's history of addiction and reported schizophrenia might fit.

We'll look at the Reiner case timeline, missed red flags, and why mental illness, abuse and flat-out entitlement can all play very different roles.

Stay to the end for a hard look at whether this was preventable and what the law actually does with parricide defendants.