AUGUSTA — The final two defendants in the 2015 drug-related beating death of an Augusta man were sentenced Monday at the Capital Judicial Center according to agreements made with the state.

Michael “Dirty” Sean McQuade, 47, of Augusta, and Damik “Doughboy” Davis, 28, of Queens, New York, pleaded guilty 11 months ago to felony murder and robbery in the killing of Joseph Marceau on Nov. 23, 2015. Both defendants signed agreements with the state that spelled out sentencing parameters.

Justice Daniel Billings imposed the sentences recommended by both sides.

McQuade was ordered to serve an initial 12 years in prison with an additional 13 years suspended and four years of probation.

Davis was ordered to serve an initial 20 years in prison with an additional 10 years suspended and four years of probation.

A third man, Aubrey Armstrong, 29, of Far Rockaway, Queens, New York, who was convicted of felony murder and robbery after a non-jury trial, was sentenced on July 13 to 30 years in prison for felony murder and a concurrent 29 years for the robbery.

Assistant Attorney General John Alsop told Billings that the prosecution believed Davis’s role “was subservient to Mr. Armstrong, that he did not share the same intent that Mr. Armstrong had to bring about the death of Mr. Marceau, but it was clear that he was directly involved in some of the physical beatings.”

Marc Menard, Marceau’s stepfather, said if Marceau were still alive, “He would wonder why Mr. Davis, who was brought to Maine to act as a bodyguard for a drug dealer, would assist him to murder someone who posed no threat to him.”

As Davis stood to talk to the judge, he also turned around and told Marceau’s family members he had no answers to their questions. He said he thinks about what happened every night.

“I just wish it never happened,” he said. “You shouldn’t forgive me. I hope I’ll be able to forgive myself one day; right now I can’t because somebody lost their life for something that was stupid. I just want to say I’m sorry to y’all. I’m sorry.”

His attorney, Stephen Smith, told the judge that “with Davis’ full assent and cooperation,” the defense’s private investigator located key evidence and a key lead on a witness for the state.

At Armstrong’s trial, witnesses testified that a group of people planned to rob Marceau, who was a drug user looking to sell some heroin to get some crack. Marceau was taken to McQuade’s former fourth floor apartment at 75 Washington St., and the beating began almost immediately.

Prosecutors said Marceau was punched, kicked and beaten with a survey stick and his head was stomped on. While he gave up the heroin almost immediately, the beating continued. Then his arms and ankles were tied.

He was found unresponsive and without a pulse by Augusta police officers responding to a neighbor’s noise complaint.

Damik Davis answered the door when police knocked, and the officers saw another individual — whom the prosecution said was Armstrong — pass behind Davis from the bedroom toward a back exit. Damik Davis fled as well, but was arrested nearby that night. McQuade was arrested about a week later, and Armstrong was arrested in New York in July 2016.

McQuade testified at Armstrong’s trial that Armstrong wanted to rob Marceau of 5 grams of heroin he had been trying to market for several days and that McQuade and his girlfriend, Zina Fritze, accompanied Davis, Armstrong and Marceau to the apartment.

Fritze, who also was charged with murder, felony murder and robbery, committed suicide in jail shortly after pleading not guilty to those charges.

Bruce Davis, speaking on behalf of Marceau’s father, Gerard, who lives in Florida, told McQuade at Monday’s sentencing that he would not forgive him for helping to slay his only son.

“The sentence he is getting does not satisfy me. His real sentence will come on judgment day,” Bruce Davis said 

In imposing the sentence, Billings told McQuade, “The best thing that you can do to show the victim’s family that the remarks you made here today were genuine is to live your life differently than you did before the tragic events that brought us all here today.”

Billings made similar remarks to Damik Davis.

The state dismissed the murder charges, which carry a sentence of 25 years to life, against both Davis and McQuade at the hearings. No one was convicted of murder in Marceau’s death.

Michael Sean McQuade, 47, of Augusta, center, confers with his attorney, Andrew Wright, during McQuade’s sentencing Monday in Augusta for felony murder and robbery in the 2015 bludgeoning death of Joseph Marceau in Augusta. (Andy Molloy/Kennebec Journal)

Damik Davis, 28, of Queens, New York, listens Monday to relatives of Joseph Marceau describe their loss following his 2015 murder in Augusta. Davis is flanked by his attorneys, Caleb Gannon, left, and Stephen Smith, right. (Andy Molloy/Kennebec Journal)

Joseph Marceau (Kennebec Journal photo)