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The insanity defense, also known as the mental disorder defense, is an affirmative defense by excuse in a criminal case, arguing that the defendant is not responsible for their actions due to a psychiatric disease at the time of the criminal act. This is contrasted with an excuse of provocation, in which the defendant is responsible, but the responsibility is lessened due to a temporary mental state. It is also contrasted with the justification of self defense or with the mitigation of imperfect self-defense. The insanity defense is also contrasted with a finding that a defendant cannot stand trial in a criminal case because a mental disease prevents them from effectively assisting counsel, from a civil finding in trusts and estates where a will is nullified because it was made when a mental disorder prevented a testator from recognizing the natural objects of their bounty, and from involuntary civil commitment to a mental institution, when anyone is found to be gravely disabled or to be a danger to themself or to others.
The M'Naghten rule(s) (pronounced, and sometimes spelled, McNaughton) is a legal test defining the defence of insanity, first formulated by the House of Lords in 1843. It is the established standard in UK criminal law. Versions have been adopted in some US states, currently or formerly, and other jurisdictions, either as case law or by statute. Its original wording is a proposed jury instruction:
that every man is to be presumed to be sane, and ... that to establish a defence on the ground of insanity, it must be clearly proved that, at the time of the committing of the act, the party accused was labouring under such a defect of reason, from disease of the mind, as not to know the nature and quality of the act he was doing; or if he did know it, that he did not know he was doing what was wrong.
The D.C. sniper attacks were a series of coordinated shootings that occurred during three weeks in October 2002 throughout the Washington metropolitan area, consisting of the District of Columbia, Maryland, and Virginia, and preliminary shootings, that consisted of murders and robberies in several states, and lasted for six months starting in February 2002. Seven people were killed, and seven others were injured in the preliminary shootings, and ten people were killed and three others were critically wounded in the October shootings. In total, the snipers killed 17 people and wounded 10 others in a 10-month span.
John Allen Muhammad was an American convicted spree killer who, along with his partner and accomplice Lee Boyd Malvo, carried out the D.C. sniper attacks of October 2002, killing seventeen people. Muhammad and Malvo were arrested in connection with the attacks on October 24, 2002, following tips from alert citizens.
In criminal law, diminished responsibility is a potential defense by excuse by which defendants argue that although they broke the law, they should not be held fully criminally liable for doing so, as their mental functions were "diminished" or impaired.
John Warnock Hinckley Jr. is an American man who attempted to assassinate U.S. president Ronald Reagan as he left the Hilton Hotel in Washington, D.C., on March 30, 1981, two months after Reagan's first inauguration. Using a revolver, Hinckley wounded Reagan, police officer Thomas Delahanty, Secret Service agent Tim McCarthy and White House Press Secretary James Brady. Brady was left disabled and died 33 years later from his injuries.
Lee Boyd Malvo, also known as John Lee Malvo, is a Jamaican convicted mass murderer who, along with John Allen Muhammad, committed a series of murders dubbed the D.C. sniper attacks over a three-week period in October 2002. Malvo was aged 17 during the span of the shootings. He is serving multiple life sentences at Keen Mountain Correctional Center in Virginia, a maximum security prison.
The 1999 Honolulu shootings or the Xerox murders were an incident of mass murder that occurred on November 2, 1999, in a Xerox Corporation building in Honolulu, Hawaii, United States. Service technician Byran Koji Uyesugi shot at eight people, wounding seven fatally. This was the worst mass shooting in the history of Hawaii.
Brian Gene Nichols is a convicted murderer known for his escape and killing spree in the Fulton County Courthouse in Atlanta, Georgia, on March 11, 2005. Nichols was on trial for rape when he escaped custody and murdered Rowland Barnes, the judge presiding over his trial, a court reporter, a Fulton County Sheriff's deputy, and later an ICE special agent. Twenty-six hours after a large-scale manhunt was launched in the metropolitan Atlanta area, Nichols was taken into custody. The prosecution charged him with committing 54 crimes during the escape; he was found guilty on all counts on November 7, 2008, and was subsequently sentenced to life in prison.
The Criminal Lunatics Act 1800 was an Act of the Parliament of Great Britain that required and established a set procedure for the indefinite detention of mentally ill offenders. It was passed through the House of Commons in direct reaction to the trial of James Hadfield, who attempted to assassinate King George III.
Clark v. Arizona, 548 U.S. 735 (2006), is a United States Supreme Court case in which the Court upheld the constitutionality of the insanity defense used by Arizona.
The Old Salisbury Road shooting was a mass shooting in Winston-Salem, North Carolina, committed by Michael Charles Hayes on July 17, 1988. Hayes shot nine people, killing four of them; his subsequent successful use of the insanity defense in courts created a statewide controversy in the early 1990s.
Bigby v. Dretke 402 F.3d 551, the U.S. Court of Appeals for the Fifth Circuit heard a case appealed from the United States District Court for the Northern District of Texas on the issue of the instructions given to a jury in death penalty sentencing. The decision took into account the recent United States Supreme Court decisions concerning the relevance of mitigating evidence in sentencing, as in Penry v. Lynaugh.
Settled insanity is defined as a permanent or "settled" condition caused by long-term substance abuse and differs from the temporary state of intoxication. In some United States jurisdictions "settled insanity" can be used as a basis for an insanity defense, even though voluntary intoxication cannot, if the "settled insanity" negates one of the required elements of the crime such as malice aforethought. However, U.S. federal and state courts have differed in their interpretations of when the use of "settled insanity" is acceptable as an insanity defense and also over what is included in the concept of "settled insanity".
In the field of criminal law, there are a variety of conditions that will tend to negate elements of a crime, known as defenses. The label may be apt in jurisdictions where the accused may be assigned some burden before a tribunal. However, in many jurisdictions, the entire burden to prove a crime is on the prosecution, which also must prove the absence of these defenses, where implicated. In other words, in many jurisdictions the absence of these so-called defenses is treated as an element of the crime. So-called defenses may provide partial or total refuge from punishment.
Insanity in English law is a defence to criminal charges based on the idea that the defendant was unable to understand what he was doing, or, that he was unable to understand that what he was doing was wrong.
United States federal laws governing offenders with mental diseases or defects provide for the evaluation and handling of defendants who are suspected of having mental diseases or defects. The laws were completely revamped by the Insanity Defense Reform Act in the wake of the John Hinckley Jr. verdict.
Jared Lee Loughner is an American mass murderer who pled guilty to 19 charges of murder and attempted murder in connection with the January 8, 2011, Tucson shooting, in which he shot and severely injured U.S. Representative Gabby Giffords, and killed six people, including Chief U.S. District Court Judge John Roll, Gabe Zimmerman, a member of Giffords's staff, and a 9-year-old girl, Christina-Taylor Green. Loughner shot and injured a total of 13 people, including one man who was injured while subduing him.
James Eagan Holmes is an American mass murderer responsible for the 2012 Aurora theater shooting in which he killed 12 people and injured 70 others at a Century 16 movie theater on July 20, 2012. He had no known criminal background before the shooting occurred. Before the shooting, Holmes booby-trapped his apartment with explosives, which were defused one day later by a bomb squad.
Kahler v. Kansas, 589 U.S. ___ (2020), is a case of the United States Supreme Court in which the justices ruled that the Eighth and Fourteenth Amendments of the United States Constitution do not require that states adopt the insanity defense in criminal cases that are based on the defendant's ability to recognize right from wrong. It was argued on October 7, 2019 and decided on March 23, 2020.
References
- ↑ Bean, Matt (May 21, 2003). "'Matrix' Makes Its Way into Courtrooms as Defense Strategy". CNN. Retrieved June 9, 2012.
- 1 2 3 4 Schone, Mark (November 9, 2003). "The Matrix Defense". The Boston Globe. Archived from the original on March 24, 2012. Retrieved June 9, 2012.
- ↑ "Profile: Lee Boyd Malvo". BBC. October 10, 2003. Archived from the original on November 12, 2012. Retrieved June 9, 2012.
- ↑ Chalmers, Phil (2009). Inside the Mind of a Teen Killer. Nashville, Tennessee: Thomas Nelson. p. 55. ISBN 978-1-59555-152-8.
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