One person was killed and at least one other was seriously injured Wednesday evening in two crashes on Interstate 16. Georgia State Patrol troopers were investigating an accident between a car and a truck on westbound I-16 near mile marker 117 – about a mile from U.S. 301 South – when the second crash happened, involving two 18-wheelers, according to information shared between dispatchers and emergency responders. The driver of one tractor-trailer rig was killed in the second crash.