The case of missing Nashville mother Nikki Burgess remains unsolved, even though police named a person of interest immediately after she disappeared.

Eight months have passed since Burgess disappeared. The father of her child, Caleb Cannon, remains investigators’ top person of interest.

Police found a sheet with blood, brass knuckles, cleaning products, an extension cord and string in Burgess’ home.

Police said the couple’s son told a friend that he “might not be seeing his mom anymore because she is probably dead” and that he was “pretty sure that his dad killed his mom.”

In search warrants, police said cadaver dogs smelled human decomposition in Cannon’s car.

Neighbors said they saw two people in the early morning hours unloading something out of Burgess’ home into a car.

“I do think the brother helped,” said Brittany McCann, Burgess’ friend. “I don’t know 100 percent, but I do know that there were two people that were there in the morning. There were two people in the rear of her home.”

McCann got word that the Cannon brothers got jobs at the University of Tennessee, Knoxville as maintenance workers.

“I mean, it’s a huge concern,” McCann said.

She quickly started firing off emails.

“The campus police department, the chancellor, the provost, somebody in human resources,” McCann said. “I let them know Caleb’s history. I sent them links to the news stories because that’s not going to show up on a background check because the arrest hasn’t happened yet, but it will.”

The vice chancellor of the university responded and thanked McCann for the alert. Cannon was fired on Tuesday.

“I hate to say it, but it feels great,” McCann said. “But I don’t want Caleb to be able to live a normal life when Nikki is not living hers.”

Investigators said they are waiting on evidence analysis in Burgess’ case from the TBI and FBI. Detectives said the investigation into what happened to Burgess and who’s to blame is far from cold.

“It’s still not only my main priority, but a priority of the police department as well,” Detective Kevin Akin said.

A spokesperson for the University of Tennessee told Channel 4 Cannon was still under probation and they did not have to have a reason to fire him since he had been working there less than six months.

Cannon’s brother is reportedly still employed.

Cannon has not been charged in connection with the case. (WSMV-TV)