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 KNOXVILLE, Tenn. — Joel Michael Guy Jr. drove up from Baton Rouge, La., apartment last week to join his parents at their West Knox County home, along with his three sisters, for Thanksgiving dinner.
Afterward the sisters returned to their homes. Everything seemed fine during the family gathering, authorities said.
But sometime between Friday night and mid-day Saturday, the 28-year-old Guy attacked his parents with a knife, possibly tortured them and dismembered their bodies, leaving remains in various rooms of the 2,256-square-foot home, according to Knox County Sheriff's Office Maj. Michael K. MacLean.
"Joel placed pieces of the bodies in an acid-based solution in an attempt to destroy evidence," said MacLean, who commands the Major Crimes Unit at the Sheriff's Office.
The solution was composed of normal household chemicals and didn't require special knowledge of chemistry, MacLean said.
"It's the kind of thing you can get off the Internet," MacLean said.
Guy left the house unlocked and returned Sunday to Baton Rouge, MacLean said.