Two more Austin residents were under investigation Thursday in connection with the deadly shooting of a Tennessee state trooper over the weekend.

TBI

Emiliov Fernandez

According to the Tennessee Bureau of Investigation, TBI agents and the Austin Police Department say a man and a woman rented the car that two teens were driving when they were pulled over by Trooper Calvin Jenks, 24.

Jenks was found shot to death near his patrol car. According to the arrest warrant, the shooting was caught on videotape from Trooper Jenks' cruiser. The video led authorities to arrest Orlando Garcia, 19, and Alejandro Guana, 17, Sunday at a hotel in downtown Nashville.

Authorities believe the Austin teens had drugs in their car. Garcia and Guana are facing murder charges.

The man who rented the teens' car has been identified as Emilio Fernandez. He is currently jailed in Travis County. The woman was not identified.

TBI detectives said in a news release that a search of Guana's home turned up a roll of plastic wrapping that is commonly used to package "large portions of narcotics." It also found marijuana residue and a white powder that tested positive for cocaine.

"It is my full belief that there is a larger drug operation connected to this case that has yet to be reveled," said Mark Gwyn, TBI director. "Our agents will not rest until all of the pieces of this puzzle have been put together."

Garcia and Guana were jailed in Tennessee. According to the Tennessee arrest warrant Garcia was interviewed and admitted to his role in the shooting of Trooper Jenks. Garcia also implicated the 17 year old juvenile as the shooter.

Trooper Jenks was on the force for just three years. He was newly married and had moved to Tipton County in Tennessee to be close to his wife.