Felony Murder in the First-Degree
Massachusetts requires proof that the defendant actually killed the victim during the commission of the felony, Commonwealth v. Balliro, 349 Mass. 505, 515 (1965), rather than a general allegation that the victim was killed by someone during the commission of a crime in which the defendant was a participant. It is irrelevant, however, whether the person killed was the intended victim, a bystander, or an accomplice, so long as the conduct of the defendant caused the death in the commission of the felony. Commonwealth v. Balliro, 349 Mass. at 515. Moreover, the felony murder rule applies to homicides that occur immediately after the felony in furtherance of attempts to escape. Commonwealth v.
Green, 302 Mass. 547, 555 (1939). If convicted of felony murder in the first degree, the defendant faces life in prison without the possibility of parole.
Second Degree Murder
In order to sustain a prosecution for murder in the second degree, the Commonwealth must prove that the defendant committed an unlawful killing and that that killing was committed with malice. G.L. c. 265, § 1; Commonwealth v. Leate, 352 Mass. 452, 45657 (1967). An unlawful killing, regardless of the degree of murder, is a killing committed without excuse
Felony Murder in the Second-Degree
Felony murder in the second degree is murder committed during the commission or attempted commission of a felony, with a maximum sentence of less than imprisonment for life. Commonwealth v. Donovan, 422 Mass. 349, 35253 (1996). The prosecution must demonstrate facts to support the same elements necessary to support a charge of felony murder in the first degree; that is, that the defendant committed or attempted to commit a felony, that a killing occurred during the commission or attempted commission of that felony and at substantially the same time and place, and that the felony was inherently dangerous or the defendant acted with a conscious disregard for human life. The difference between first- and second-degree felony murder lies in the sentence. If the underlying felony is not punishable by life imprisonment, then felony murder in the second degree is the appropriate result. Commonwealth v. Donovan, 422 Mass. 349, 35253 (1996) (citing Commonwealth v. Rego, 360 Mass. 385, 395 (1996)).
http://www.mcle.org/includes/pdf/2050204B00_S.pdf