How the data were gathered

It wasn’t easy assembling the data for this report.

No one agency or office compiles a comprehensive list of instances when police use deadly force, so CommonWealth gathered the information from the state’s district attorneys, the State Police, state and federal court records, and the state Department of Public Health, which tracks all shooting injuries and deaths that involve some sort of treatment at a hospital or clinic.

Each source had deficiencies in its data. District attorneys from at least four counties, for example, failed to list at least one case their offices had handled. The State Police data, covering all of the state except Boston, Worcester, and Springfield, where local police handle investigations, failed to include 11 fatal shootings in Plymouth, Bristol, and Norfolk counties. The State Police list, however, included three shootings by state troopers that were not identified by district attorneys.

Boston police, who were involved in 16 shooting deaths since 2002, the most in the state, initially promised to provide information on their cases but never did despite numerous follow-up calls and emails. Officials in the Worcester and Springfield police departments did not return calls or respond to requests for information.

The district attorneys, who decide whether prosecution of a police officer who used deadly force is warranted, responded in very different ways to requests for information on their deliberations. Some provided a list of all shootings in their districts and reports detailing their decisions on whether to prosecute or not. Others simply provided a brief paragraph on each case of deadly force. Some said their decisions were available at a cost after redaction because of legal exemptions and privacy concerns, exemptions not cited by those officials who provided reports.

Meet the Author

Jack Sullivan

Senior Investigative Reporter, CommonWealth

About Jack Sullivan

Jack Sullivan is now retired. A veteran of the Boston newspaper scene for nearly three decades. Prior to joining CommonWealth, he was editorial page editor of The Patriot Ledger in Quincy, a part of the GateHouse Media chain. Prior to that he was news editor at another GateHouse paper, The Enterprise of Brockton, and also was city edition editor at the Ledger. Jack was an investigative and enterprise reporter and executive city editor at the Boston Herald and a reporter at The Boston Globe.

He has reported stories such as the federal investigation into the Teamsters, the workings of the Yawkey Trust and sale of the Red Sox, organized crime, the church sex abuse scandal and the September 11 terrorist attacks. He has covered the State House, state and local politics, K-16 education, courts, crime, and general assignment.

Jack received the New England Press Association award for investigative reporting for a series on unused properties owned by the Catholic Archdiocese of Boston, and shared the association's award for business for his reporting on the sale of the Boston Red Sox. As the Ledger editorial page editor, he won second place in 2007 for editorial writing from the Inland Press Association, the nation's oldest national journalism association of nearly 900 newspapers as members.

At CommonWealth, Jack and editor Bruce Mohl won first place for In-Depth Reporting from the Association of Capitol Reporters and Editors for a look at special education funding in Massachusetts. The same organization also awarded first place to a unique collaboration between WFXT-TV (FOX25) and CommonWealth for a series of stories on the Boston Redevelopment Authority and city employees getting affordable housing units, written by Jack and Bruce.

About Jack Sullivan

Jack Sullivan is now retired. A veteran of the Boston newspaper scene for nearly three decades. Prior to joining CommonWealth, he was editorial page editor of The Patriot Ledger in Quincy, a part of the GateHouse Media chain. Prior to that he was news editor at another GateHouse paper, The Enterprise of Brockton, and also was city edition editor at the Ledger. Jack was an investigative and enterprise reporter and executive city editor at the Boston Herald and a reporter at The Boston Globe.

He has reported stories such as the federal investigation into the Teamsters, the workings of the Yawkey Trust and sale of the Red Sox, organized crime, the church sex abuse scandal and the September 11 terrorist attacks. He has covered the State House, state and local politics, K-16 education, courts, crime, and general assignment.

Jack received the New England Press Association award for investigative reporting for a series on unused properties owned by the Catholic Archdiocese of Boston, and shared the association's award for business for his reporting on the sale of the Boston Red Sox. As the Ledger editorial page editor, he won second place in 2007 for editorial writing from the Inland Press Association, the nation's oldest national journalism association of nearly 900 newspapers as members.

At CommonWealth, Jack and editor Bruce Mohl won first place for In-Depth Reporting from the Association of Capitol Reporters and Editors for a look at special education funding in Massachusetts. The same organization also awarded first place to a unique collaboration between WFXT-TV (FOX25) and CommonWealth for a series of stories on the Boston Redevelopment Authority and city employees getting affordable housing units, written by Jack and Bruce.

One assistant district attorney initially declined to provide any information at all, saying the office was under “no obligation to create a record where none exist.” An aide subsequently provided a list of deadly force incidents in the district after the district attorney was told he was the only one in the state who had declined to cooperate.

It’s also tough to put the Massachusetts incidents of police deadly force in context with the rest of the country. Nationally, the FBI gathers data on deadly force incidents involving police, but the information is woefully incomplete because it is only collected from jurisdictions that report statistics to the agency. In 2012, the FBI data indicate there were a total of 410 justifiable homicides nationally by law enforcement officers, defined as the killing of a felon by an officer in the line of duty. The FBI data offer a state-by-state breakdown only for a category that lumps together justified homicides by both law enforcement officials and private citizens. For Massachusetts, that number was two in 2012, well below the eight we uncovered involving just police.