Tucker Cipriano, 20, and a co-defendant Mitchell Young, 21, are accused of first-degree murder in the April 16, 2012, slaying of Cipriano's father, Robert Cipriano, 52, and are scheduled to go on trial in Pontiac Monday.
The two are accused of breaking into the Cipriano's Farmington Hills home, beating to death Tucker's father and severely beating his mother, Rosemary Cipriano, 51, and his brother Salvatore, 17.
"There have been no discussions, nor will there be any. Not a chance. Zip. Zero. I am responsible for the safety of this community," Oakland County Prosecutor Jessica Cooper told Wednesday's Detroit Free Press.
"He's despondent, and distraught. And now that he's clean, the reality has hit home," said Robert Cipriano's brother, Greg, of his nephew.
The prosecution said Cipriano and Young were high on synthetic marijuana when they broke into the home searching for money for drugs. The two then attacked the family, attempting to do away with any eyewitnesses.
Cipriano denied attacking either of his parents. He admitted he hit his brother multiple times with a BB gun, but said he didn't strike him with a bat.
Cipirano lawyer Mitchell Ribitwer said a plea for a second-degree murder conviction likely would bring a sentence of 35 to 40 years.
But chief assistant prosecutor Paul Walton said the only plea to which prosecutors would agree is guilty-as-charged. If Cipriano and Mitchell are found guilty of first-degree murder, they face life in prison without possibility of parole.