ST ANN, Mo. — St. Ann Police are investigating a shooting that left a mother and her two children dead late Monday night. St. Ann Police Chief Aaron Jimenez told 5 On Your Side that police responded to a call of three people down at an apartment shortly before 8:30 p.m. in the 4100 block of Jane Avenue in St. Ann. Jimenez said when police arrived, they discovered a woman in a garage, dead from a gunshot wound. She was identified as 30-year-old Seychelle Schaumburg.