Graphic details emerged this week during the trial of a man accused of killing and dissolving his parent's bodies in acid over Thanksgiving weekend in 2016.
Joel Michael Guy Jr., 32, was charged with two counts of first-degree murder, felony murder, and abuse of a corpse in the killings of Lisa and Joel Guy Sr.
The former Louisiana State University student was 28 years old when he allegedly killed them inside their Tennessee residence. The couple had been married for 31 years.
“(It was) the most horrific thing I’ve ever encountered in police work – in my life,” Knox County Sheriff’s Office Detective Jeremy McCord said, the Knoxville News Sentinel reported.
Knox County Assistant District Attorney General Leslie Nassios warned jurors on Thursday about the potential graphic display during the trial.
“The fact is you’re going to hear evidence that is truly graphic and disturbing,” she said. “There’s no other way to characterize it.”
According to testimony at the trial on Tuesday, a man's severed hands were found in an upstairs exercise room and two tubs were filled with body parts in industrial chemicals. Bloodstains covered the walls, floors and sheets. Authorities said they found knives in multiple rooms of the house.
"It was very traumatic," McCord, the lead investigator in the case, told jurors, Knoxville's WBIR reported.
McCord said they discovered a half-dozen fingerprints belonging to the suspect. He and another officer lifted the lid on a stockpot on the stove and found Lisa Guy's head, according to the station.
Nassios said Lisa Guy was stabbed 31 times, with legs severed below the knee and her arms were severed at the shoulder. Her head was removed from her spine after blunt force trauma, officials said during the hearing.
Joel Guy Sr.'s hands were severed at the wrists and his arms were severed at the shoulder blade, court records showed. Both his legs and right foot were also removed.
Limbs were then placed in 45-gallon containers, covered with a corrosive substance and left to liquify, officials added, according to Knoxville's WVLT-TV.
It was described by state prosecutors as a “diabolical stew of human remains."
The accused killer's aunt testified on Monday that the couple was about to cut him off financially, according to the station.
The prosecution claimed that a notebook was recovered in the suspect's room that included a detailed list of steps to cover up a murder.
"Money, all mine. I get the whole thing," one alleged entry read.
Others allegedly read: "Get killing knives ... get sledgehammer - crush bones" and "Bring blender and food grinder - grind meat."
The suspect arrived at his parents' home on Wednesday, Nov. 23. He spent Thanksgiving with his parents and three sisters before he returned to Baton Rouge on Nov. 27. When his mother failed to show up for work the next day, her bosses called the sheriff's office, the paper reported.
Investigators would found evidence -- including receipts for chemicals -- in the home that they said linked the suspect to the killings.
He has denied the charges.