Mo. Rev. Stat. § 568.050 (2003)
A person commits the crime of endangering the welfare of a child in the second degree if he with criminal negligence acts in a manner that creates a substantial risk to the life, body or health of a child less than seventeen years old; or being a parent, guardian or other person legally charged with the care or custody of a child less than seventeen years old, he recklessly fails or refuses to exercise reasonable diligence in the care or control of such child.