Updated at 7:48 with confirmation from Missouri Highway Patrol (with later updates and more information below):
The Missouri Highway Patrol has officially identified Gregory Carter, alderman of the 27th ward, as the victim of the early morning vehicle crash on eastbound 370 in St. Charles County.
Carter was killed after the UPS truck he was driving for work collided with a tractor trailer, which was apparently stopped to assist a previous accident. He was pronounced dead at the scene.
Carter was 54 years old.