A few mental health disorders occur with some frequency in serial killers.
He grabbed the knife from the man and started stabbing him in the heart.
However, Jeff clipped him a hard right hand to his face, causing Keith to stagger back again.
Both boys began to protest at the same time, but they saw the look on their parents' faces.
They want me to go to sleep.
All he cared about, in that fraction of time, was hurting Keith.