Ashlee Walker was an immature mother whose daughter Sierra died of measles, an aerially contagious disease. Sierra was infected by another boy who was not vaccinated because of his mother's religious beliefs. When Sierra died, Ashlee panicked and buried her body.
Pleading guilty for negligent homicide for not vaccinating Sierra, she served 500 hours of community service and was required to Alcoholics Anonymous meetings. Ashlee and her mother were later arrested after throwing a brick through the woman's window. (SVU: "Selfish")