Philadelphia prosecutors have charged Herbert and Catherine Schaible with 3rd degree murder after their son Brandon died when the parents turned to faith healing instead of medicine for highly treatable problems. This is typical in these cases, because the parents exceed the scope of their discretion to determine best interests.
Interestingly, it seems that in some states a clinician could act on her conscience based objection. That refusal might similarly lead to the child's death. But unlike the parents, the clinician would be statutorily immune from criminal and other sanctions.