Illinois mom accused of buying carbon-dioxide canister in plan to kill 3 kids 02/19/2020 10:31 am PST Comments KTVI / St. Clair County via KTVI: O'FALLON, Ill. (KTVI) – A southern Illinois woman is facing charges she planned to kill her three young children with carbon dioxide, authorities said. Emily C. Sparks, 29, was held on three counts of attempted murder, the St. Clair County State's Attorney's office said. Her two sons and daughter, ages 3, 5, and 7, are being cared for by relatives, O'Fallon Police said. Police received a tip that Sparks had planned to kill her children Dec. 4 and learned that Sparks had purchased a canister of carbon dioxide. “She was going to open the canister of carbon dioxide inside the closed passenger compartment of the vehicle with her three children inside,” said the lead investigator in the case. MORE: O'Fallon, Ill. woman charged with planning to kill her three kids - KTVI #AttemptedMurder #Illinois #KTVI #Missouri #StLouis Related Stories Tot tried to stop Phoenix mom as she killed her 3 kids: Court document Cleveland man arrested for threatening to kill children Mom accused of smothering her kids to death pleads not guilty Mom, daughter plead not guilty to killing kids, sister, nieces Mom threw kids off Boston parking garage, then jumped: D.A. Mom stages car fire to cover up murder of 5-year-old son Waiting for your permission to load facebook comments.