Article continues below advertisementNick Reiner, the troubled addict accused of killing his parents, beloved Hollywood director Rob and wife Michele, reportedly "doesn't seem to comprehend why he's locked up at all." Per sources who spoke to journalist Rob Shuter, the 32-year-old is utterly delusional, even believing he'll be out of jail for his dad's birthday in March. One insider close to the tragic situation said, "It's like talking to someone who exists in a completely separate world.