This article states, "In a 2005 decision called Roper v. Simmons, the Supreme Court of the United States ruled that the execution of people who were under 18 at the time of their crimes violates the federal constitutional guarantee against cruel and unusual punishments." The sources used are valid because they are direct info from the laws that were passed by the state.
In this article, it explains how the violent crime index arrest rate declined for 10-17-year-olds. It says, "for all racial groups between 2006 and 2012: down 46% for American Indian youth, 37% for Asian youth, 38% for white youth, and 34% for black youth." These statistics are based on arrest estimates developed by the Bureau of Justice Statistics. This information is based off a government source.
This article shows the laws and legal standards that each state follows it also lists the death penalty laws and history. It says, "The death penalty is legal in 31 states and illegal in 19 states." All details of information are cited and reliable.
In the state of Maine, there are laws that were established that prevent people from getting the death penalty. "In 1876 the legislature of Maine abolished the death penalty by a vote of 75 to 68. In 1883 the death penalty was reestablished in Maine. Maine abolished the death penalty for the second time in 1887," this quote shows the laws that Maine has. This is a reliable source due to the research and credibility of the document of the state.
The information that is in this article contains details about the Eighth Amendment. "In March 2005, the United States Supreme Court ruled that the death penalty for those who had committed their crimes at under 18 years of age." This source is reliable because it includes historical and factual events that took place in the Supreme Court.