The four people who were found shot to death in a car in Cumberland County, Tn., about 50 miles west of Knoxville, have been identified. The TBI said they are Danielle Jacobson, 22, John Lajeunesse, 16, and Steven Presley and Dominic Davis, both 17.
It was reported a person of interest had been taken into custody on unrelated charges.
Authorities said they believe the young victims, including a female, were targeted.
A resident of the Renegade Mountain resort community saw the parked car on his way to work early Thursday morning.
Authorities are working on leads in the case.