Mo. Rev. Stat. § 565.240: Unlawful posting of certain information over the internet, offense of — violation, penalty.

1. A person commits the offense of unlawful posting of certain information over the internet if he or she knowingly posts the name, home address, Social Security number, telephone number, or any other personally identifiable information of any person on the internet intending to cause great bodily harm or death, or threatening to cause great bodily harm or death to such person.

2. The offense of unlawful posting of certain information over the internet is a class C misdemeanor, unless the person knowingly posts on the internet the name, home address, Social Security number, telephone number, or any other personally identifiable information of any law enforcement officer, corrections officer, parole officer, judge, commissioner, or prosecuting attorney, or of any immediate family member of such law enforcement officer, corrections officer, parole officer, judge, commissioner, or prosecuting attorney, intending to cause great bodily harm or death, or threatening to cause great bodily harm or death, in which case it is a class E felony, and if such intention or threat results in bodily harm or death to such person or immediate family member, the offense of unlawful posting of certain information over the internet is a class D felony.