A man in Tucson, Arizona, has been charged with the killing of his young son.
The man, 22-year-old Zechariah MacDonald, was taking care of his son alone when he wanted to take a nap. He put his son into a playpen, and then walked away. When the boy began to cry, MacDonald placed blankets over the boy to stifle the noise.
When he awoke from his nap, he found the boy unresponsive. He has been charged with manslaughter and domestic violence.