UPDATE: Four now dead after train derailment in northern Missouri; NTSB on-scene now
UPDATE: The National Transportation Safety Board (NTSB) has arrived on the scene of that deadly train derailment in northern Missouri’s Mendon. And Missouri state troopers now say four people have died in the incident. The fourth victim was a passenger on the train. HERE IS THE ORIGINAL TUESDAY STORY: State troopers say three people have …