By Shawndrea Thomas Cahokia, IL (KTVI) — Two teenage girls were shot over a break-up and a posting on Facebook, reported KTVI in St. Louis. Police did not say what the post said that got the shooting suspect so upset. One of the victims, 16-year-old girl, was shot in the neck. According to Cahokia police, the 16 year old and her 17-year-old friend were shot by 18-year-old Amos Bullocks early Sunday morning. The 17-year-old girl was shot twice in the head. The girls’ identities are not being released.