Do it yourself
When it comes time for L.T. to do his job, which is to smother an autistic child in his bedroom while the knowing parents pretend to sleep, things do not go according to plan. L.T. becomes frustrated when the kid does not respond to him and stares inert into space. Feeling sympathy for the child, he brings him to the parents' bedroom and yells, "Do it yourself!" When he returns to Hazel's to explain that he did not do the job, Hazel calls him "sensitive" and demands her rent money. Detective Hughes is also in the house, to Hazel's surprise, and they argue over their agreement. Hazel calls Hughes "picky", which enrages him and he drowns her to death in the kitchen sink. The sister-in-law walks into the kitchen and dispassionately takes Hazel's key to the dial phone's lock and unlocks it.