In 1977, RSA 630:1 III was amended by the legislature so that a person convicted of a capital murder "may" be punished by death, instead of "shall be" punished by death. In 1988, killing another after being sentenced to life imprisonment without parole pursuant was added to RSA 630:1. Also, probation-parole officer was added to the list of law enforcement officers contained in Paragraph II of the statute. In 1990, causing the death of another before, after, while engaged or attempting to commit aggravated felonious sexual assault, or an offense punishable under RSA 318-B:26, I(a) or (b) of the Controlled Drug Act was added as an aggravating element that might cause a crime to be classified as capital murder. In 1994, killing a "judicial officer" was added to the criteria for capital murder, and retaliation for a person's actions in the line of duty was added. In 1992, the New Hampshire State Prison dismantled its gallows. In 2000, Governor Jeanne Shaheen vetoed legislation to abolish the death penalty. The act had passed the House of Representatives 191-163 and the Senate 14–10. A two-thirds majority to overturn the veto was not achieved. In 2004, Governor Craig Benson vetoed legislation that would have raised the minimum age to execute someone from 17 to 18. Benson said: When somebody, regardless of their age, is bold enough to take the life of a police officer, there should be no exceptions — we should make sure that they should pay the ultimate price. So I'm going to make a pledge as governor that if anyone takes the life of a police officer, I will seek the death penalty. In 2006, the statutory minimum age for a person punishable by death was raised from 17 to 18 years. The U.S. Supreme Court ruled in Roper v. Simmons (2005), that it is unconstitutional to impose the death penalty on people who were under age of 18 when they committed a capital crime. It noted that science has demonstrated the brains of minors are still unformed, and that it constituted "cruel and unusual punishment" to sentence them as adults. In 2009, Representative Stephen Linsey introduced House Bill 556, to repeal the death penalty. The bill was suggested "Inexpedient to Legislate" by the House Judicial Committee. It passed the House by a narrow margin, but failed to pass the Senate, where the vote was tied 12-12. In 2018, the