Witnesses: St. Louis police officer shoots, kills man armed with knife

ST. LOUIS — A St. Louis police officer shot and killed a man reportedly armed with a knife Tuesday afternoon, FOX 2 Now reports. Authorities said a man walked into a store brandishing a knife. The store owner is said to have argued with the man. Police were called to the scene after the man reportedly refused to put down the knife. According to FOX 2, the man tried to attack police when he was shot and killed. This is a developing story. Refresh this page for updates.