He is the first person to be charged in the death of the boy.
A man and a woman have been charged in her death.
She died last year at 46 and was never charged in her husband's death.
Her parents have been charged in the death this week of the 4-year-old.
The sister and her husband have been charged with manslaughter in the death of the 9-year-old girl.
She is also charged in the death of another son, Devon, 6.
He has been charged in only one patient's death.
What they unearthed has made it far less likely that she, too, will be charged in Lisa's death.
More than a week after Yaakov's mother was charged in his death, much about the case is beyond public scrutiny.
No one was charged in the infant's death, but the children were scattered to foster homes.