Mass. Gen. Laws ch. 265 § 3
Current with Act changes effective as of September 9, 2024
An inhabitant or resident of this commonwealth who, by previous appointment or engagement made within the same, fights a duel outside its jurisdiction, and in so doing inflicts a mortal wound upon a person whereof he dies within the commonwealth shall be guilty of murder within this commonwealth, and may be indicted, tried and convicted in the county where the death occurs.
Mass. Gen. Laws ch. 265, § 3