Indiana authorities now confirm a 17-year-old is being held as the suspect in a series of highway shootings.
Prosecutors say Zachariah Blanton faces preliminary charges of murder, attempted murder and criminal recklessness. They also confirm finding the rifle they think he used.
The shootings occurred in the early hours of Sunday. The first bullets hit two pickup trucks on Interstate-65, killing one man and wounding another. Some two hours later, two more vehicles were struck. That happened on another road about 100 miles away, and no one was hurt.
Prosecutors did not immediately discuss a possible motive.