Murder in Massachusetts law constitutes the intentional killing, under circumstances defined by law, of people within or under the jurisdiction of the U.S. state of Massachusetts.
First-degree murder is the most serious homicide offense in Massachusetts. It constitutes an intentional killing with premeditation, a murder executed with extreme atrocity and cruelty, or the killing of a person caused by the commission or attempted commission of a felony that can be punished by life in prison regardless of intent. For adult offenders, it is punished only by life imprisonment without the possibility of parole. For juvenile offenders, it is punished only by life-with-parole.
Second-degree murder
Second-degree murder is the second most serious homicide offense in Massachusetts. It constitutes the intentional killing of someone without premeditation, or the killing of someone caused by the commission or attempted commission of a felony that is not punishable by life. It is punished by life-with-parole after 15 to 25 years.