Koonce murder sentence commuted after 31 years in jail

Parole Board says ex-Marine from Brockton ‘suitable candidate’

AFTER SPENDING 31 years in jail for murder, Thomas Koonce will soon be a free man.  

Gov. Charlie Baker commuted Koonce’s sentence in January and on Tuesday the Parole Board granted Koonce’s petition for parole, which was the final procedural step before Koonce can be released.  

“After careful consideration of all relevant facts…we conclude by a unanimous vote that the inmate is a suitable candidate for parole,” the six-member board wrote in its decision.  

According to the board’s decision, Koonce will be sent to a residential reentry program in Boston run by Community Resources for Justice for four months. He will live at Brooke House, a center in downtown Boston that houses up to 65 men who are preparing to return to the community after incarceration. The program gives these men help with things like finding work, securing housing, beginning counseling, or entering an educational program.  

Koonce will have to then submit a family-sponsored or independent living home plan. Going forward, he will have to abide by a nighttime curfew and wear an electronic monitoring bracelet. He will have to abstain from drugs and alcohol, get counseling during his transition, and have no contact with his victim’s family. 

Koonce, 54, a former Marine from Brockton, was sent to prison for firing out a car window in 1987 during a fight and killing Mark Santos. He claimed he never intended to hit anyone, but has since taken responsibility for his actions. He participated extensively in education, rehabilitation, and restorative justice programs in prison. 

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Shira Schoenberg

Reporter, CommonWealth

About Shira Schoenberg

Shira Schoenberg is a reporter at CommonWealth magazine. Shira previously worked for more than seven years at the Springfield Republican/MassLive.com where she covered state politics and elections, covering topics as diverse as the launch of the legal marijuana industry, problems with the state's foster care system and the elections of U.S. Sen. Elizabeth Warren and Gov. Charlie Baker. Shira won the Massachusetts Bar Association's 2018 award for Excellence in Legal Journalism and has had several stories win awards from the New England Newspaper and Press Association. Shira covered the 2012 New Hampshire presidential primary for the Boston Globe. Before that, she worked for the Concord (N.H.) Monitor, where she wrote about state government, City Hall and Barack Obama's 2008 New Hampshire primary campaign. Shira holds a master's degree from Columbia University's Graduate School of Journalism.

About Shira Schoenberg

Shira Schoenberg is a reporter at CommonWealth magazine. Shira previously worked for more than seven years at the Springfield Republican/MassLive.com where she covered state politics and elections, covering topics as diverse as the launch of the legal marijuana industry, problems with the state's foster care system and the elections of U.S. Sen. Elizabeth Warren and Gov. Charlie Baker. Shira won the Massachusetts Bar Association's 2018 award for Excellence in Legal Journalism and has had several stories win awards from the New England Newspaper and Press Association. Shira covered the 2012 New Hampshire presidential primary for the Boston Globe. Before that, she worked for the Concord (N.H.) Monitor, where she wrote about state government, City Hall and Barack Obama's 2008 New Hampshire primary campaign. Shira holds a master's degree from Columbia University's Graduate School of Journalism.

In January, Baker issued his first two commutations since he entered office, commuting the first-degree murder sentences of Koonce and another man, William Allen, to second-degree murder, making both men eligible for parole. The Governor’s Council confirmed Baker’s commutations in February. The Parole Board held parole hearings in both cases, and the board is still considering Allen’s petition for release. 

In its decision, the Parole Board said Koonce has taken responsibility for Santos’ death and “has spent his incarceration working towards his rehabilitation.” He has been a mentor to other incarcerated men, earned a bachelor’s degree and obtained vocational skills, and worked toward rehabilitating himself even when he thought parole was not a possibility. The board wrote that Koonce has “an excellent network of supports in the community,” which will help him reenter society.