We dropped in on the class as they were discussing zombies who kill. As Smaw explains, there’s a big difference between Hollywood zombies and real-life neurological zombies—people who slip into an augmented state of consciousness just above what society considers sleepwalking.
These zombies sometimes do terrible things without realizing their actions. For instance, Kenneth Park, a man with severe insomnia, drove 14 miles in the middle of the night, killed his mother-in-law, then drove to a nearby police station to confess his crime.
A jury—and later the Supreme Court of Canada—acquitted him of murder. In addition to having no motive for the killing, a battery of tests showed Park had abnormal brain activity that pointed to sleepwalking as the likely explanation for his behavior.