UPDATE 4:30 p.m., Sept. 13: Carjacking suspect Dangelo Dorsey is dead, according to local officials. Dorsey is wanted in connection to shooting on I-24 in Coffee County. 

Dorsey took his own life, officials said. 

A Tennessee Highway Patrol officer spotted the vehicle in question with the suspect Dangelo Dorsey at Mile Marker 154 on I-24 in Marion County, Tenn.

A female hostage was with Dorsey and was unharmed. A second hostage was not in the vehicle. Authorities have found the body of the male hostage at the Bonnaroo grounds in Coffee County. Authorities said that the man was "executed."   

Earlier reporting: 

The TBI has been requested to investigate this morning's deadly shooting on I-24 in Coffee County, in which an armed and dangerous suspect is still on the run. Agents are also investigating reported carjackings in several surrounding Middle Tennessee counties that may be related.

"We have confirmed the suspect in this morning's I-24 shooting and a related carjacking is Dangelo Dorsey, DOB 2-2-91, from St. Louis, Missouri. He should be considered armed and dangerous and remains on the run at this time. If you spot him, do not approach. Call 911," TBI officials said.