Question: The 2015 Clinton Correctional Facility escape took place on June 6, 2015, when two inmates, David Sweat, and who, which was an American murderer known for several prison escapes, most notably the 2015 Clinton Correctional Facility escape?
Context: Edna Mahan Correctional Facility for Women (formerly the Clinton Correctional Facility for Women) is a prison facility for women of the state of New Jersey Department of Corrections, located in Union Township, Hunterdon County, New Jersey, near Clinton.  Its official abbreviation is EMCFW.  The facility was named for Edna Mahan (b. 1900, pronounced Mann), one of the first female correctional superintendents in the U.S. Dodge Correctional Institution, (DCI), is an adult male maximum-security correctional facility operated by the Wisconsin Department of Corrections Division of Adult Institutions in Waupun, Wisconsin.  The facility was converted from the Central State Hospital for the Criminally Insane to an adult correctional facility in 1977 at a cost of $2.47 million of general obligation bonds, as authorized by Chapter 29 of the Laws of 1977.  The first two inmates were transferred from the nearby Waupun Correctional Institution to DCI on May 15, 1978.  On October 29, 1993, ground was broken for a $45 million expansion which more than doubled the size of the facility.  On June 17, 1996, the first female was admitted to DCI making it the only reception center for both male and female adult felons committed to the Wisconsin Department of Corrections.  DCI served as the reception center for both males and females until December 1, 2004, when the female reception center moved to the Taycheedah Correctional Institution.  DCI also serves as the central medical center for the division, providing both in-patient and out-patient care for male and female inmates. The 2015 Clinton Correctional Facility escape took place on June 6, 2015, when two inmates, Richard Matt and David Sweat, were discovered missing during a 5:17 a.m. bed check at the maximum security Clinton Correctional Facility.  Matt was serving 25 years to life and Sweat was serving life without parole, both for murder.  Nearly three weeks later, Matt was found at Malone, New York, where he was shot and killed; two days after that, Sweat was shot and taken into custody.  The manhunt and investigation was said to cost about $23 million. David L. McNulty is a U.S. Marshal.  He was nominated for full U.S. Senate confirmation to the office in 2011 by U.S. President Barack Obama upon recommendation of Senator Charles Schumer of New York.  McNulty is the U.S. Marshal U.S. Marshals Service for the Northern District of New York.  A former Major and 33 year veteran with the New York State Police, McNulty was Section Head of the Bureau of Criminal Investigation (BCI), where he assisted with the command of over 1300 BCI police personnel.  He joined the New York State Police as a trooper in 1978.  McNulty received his B.A. and M.A. from the University of Albany.  He led the U.S. Marshals Service response to the highly televised escape of murders Richard Matt and David Sweat from the Clinton County Correctional Facility in Dannemora N.Y. in June 2015.  Quite possibly the largest manhunt in state history involving close to 1500 law enforcement personnel.  The U.S. marshals Service efforts were in cooperation with the New York State Police and a host of other local, state and federal agencies thoroughout this extensive 23 day manhunt that ultimately led to the fatal shooting of Richard Matt and the shooting and capture of David Sweat. Green Haven Correctional Facility is a maximum security prison in New York.  The prison is located in the Town of Beekman in Dutchess County.  The New York State Department of Corrections and Community Supervision lists the address as Route 216, Stormville, NY 12582.  This prison housed New York's execution chamber during the time the state briefly had the death penalty (but never used it) in the post-"Furman" era.  New York's electric chair "Old Sparky" was moved here from Sing Sing Correctional Facility.  It was originally a federal prison and now houses maximum security inmates.  Green Haven Correctional Facility also operates a Hot Kosher Food Program; because of this, the prison has a large Jewish population.  Yale Law School operates the Green Haven Prison Project, a series of seminars among Yale law students and Green Haven inmates on law and policy issues concerning prisons and criminal law. Taconic Correctional Facility is a medium security women's prison in Bedford Hills, New York that is operated by the New York State Department of Corrections.  It is associated with the Bedford Hills Correctional Facility, a maximum security women's prison.  In 1901 it opened as the 'New York State Reformatory for Women' between the ages of 15 and 30.  The then Department of Corrections took over the administration of the reformatory in 1926 and, in 1933 it was merged it with the newly opened 'Bedford Hills Correctional Facility for women'.  For the next four decades, the reformatory operated as part of Bedford Hills, still the state’s only maximum-security prison for females.  In 1973, Taconic began operations as an autonomous medium-security prison.  During 1971 and 1972, Bedford Hills was a correctional facility with separate male and female units.  In 1973 the male inmates were transferred before the unit closed in June; the unit reopened in December as the Taconic Correctional Facility. Richard William Matt (June 25, 1966 – June 26, 2015) was an American murderer known for several prison escapes, most notably the 2015 Clinton Correctional Facility escape. Clinton Correctional Facility is a New York State Department of Corrections and Community Supervision maximum security state prison for men located in the Village of Dannemora, New York.  The prison itself is sometimes colloquially referred to as Dannemora, although its actual name is derived from its location in Clinton County, New York.  The southern perimeter wall of the prison borders New York State Route 374.  Church of St. Dismas, the Good Thief, a church built by inmates, is located within the walls.  The prison is sometimes referred to as New York's Little Siberia due to the cold climate in Dannemora and the isolation of the area.  It is the largest maximum security prison and the third oldest prison in New York.  The staff includes about a thousand guards. The Indianapolis Juvenile Correctional Facility was a minimum, medium, and maximum state juvenile facility of the Indiana Department of Correction.  It was located on Girls School Road, 8 mi west of downtown Indianapolis.  The facility currently houses 185 female inmates ranging in age from twelve years to twenty-one years.  The facility was originally established in 1907 as an all-girls school and was known for most of its history as the Indiana Girls School.  In 2006, juvenile male offenders were assigned to the facility as well.  In late 2007 all male offenders were transferred to other state facilities and the Indianapolis Juvenile Correctional Facility reverted to being an all female facility.  In 2009 the girls were moved to the Madison Juvenile Correctional Facility, and the former IJCF became the current location of the Indiana Women's Prison. Kinross Correctional Facility (KCF) is a Michigan prison, located in Kincheloe, which houses adult male prisoners.  The original facility closed in October 2015, with most of the inmates relocating to the formerly closed Hiawatha Correctional Facility.  Upon the move, the Kinross Correctional Facility name was transferred to the reopened complex.
Answer: Richard Matt