Question: How old was the wrestler in the double murder and suicide that took place while Vengeance: Night of Champions was happening?

Context paragraphs:
Chris Benoit double-murder and suicide: Over a three-day period between June 22 and June 25, 2007, Chris Benoit, a 40-year-old veteran professional wrestler employed by World Wrestling Entertainment (WWE), killed his wife Nancy Benoit and strangled their 7-year-old son Daniel before hanging himself.  Autopsy results showed that Benoit's wife was murdered first as she was bound at the feet and wrists and died of asphyxiation on Friday.  Nancy was found wrapped in a towel and with blood under her head, although Fayette County District Attorney Scott Ballard reported no other signs of a struggle.

Monster of Florence: The Monster of Florence (Italian: Il Mostro di Firenze) is the name commonly used by the media in Italy for a series of eight double murder cases that took place between 1968 and 1985 in the province of Florence, Italy.  Prosecution offices carried on several investigations into the cases for many years.  The courts reached the conclusion that the murders were not committed by a single person but by a group of at least four perpetrators, who became later known as "the picknick comarades", and were definitively convicted.  The 1968 murder was found to be a case unrelated to the others, albeit that the gun, that probably originally belonged to small local criminality, might be the same involved in the actual Monster cases.

Novi Ligure murder: The Novi Ligure murder was a double murder that took place on the evening of 21 February 2001 in Novi Ligure, Piedmont, Italy.

Vengeance (2011): Vengeance (2011) was a professional wrestling pay-per-view (PPV) event produced by WWE that took place on October 23, 2011 at the AT&T Center in San Antonio, Texas.  It is the twelfth event under the Vengeance/Night of Champions chronology and the first event under the Vengeance name since the .  Eight matches took place at the event.  The pay-per-view garnered 121,000 buys, down from 137,000 buys the previous year's event, Bragging Rights, received.

Paddy Wilson and Irene Andrews killings: The killings of Paddy Wilson and Irene Andrews took place in Belfast, Northern Ireland on the night of 25/26 June 1973.  The victims, Roman Catholic Senator Paddy Wilson and his Protestant friend, Irene Andrews, were hacked and repeatedly stabbed to death by members of the "Ulster Freedom Fighters" (UFF).  This was a cover name for the Ulster Defence Association (UDA), a then-legal Ulster loyalist paramilitary organisation.  John White, the UFF's commander, who used the pseudonym "Captain Black", was convicted of the sectarian double murder in 1978 and sentenced to life imprisonment.  White, however maintained that the UFF's second-in-command Davy Payne helped him lead the assassination squad and played a major part in the attack.  Although questioned by the Royal Ulster Constabulary (RUC) after the killings, Payne admitted nothing and was never charged.

Vengeance: Night of Champions: Vengeance: Night of Champions was the seventh annual professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE) within its Vengeance/Night of Champions chronology.  It featured talent from the Raw, SmackDown! , and ECW brands.  The event was sponsored by Raw Attitude Energy Drink and took place on June 24, 2007, at the Toyota Center in Houston, Texas.  Every match on the card was contested for a championship; two were won and seven were retained.  This event was notable for being on the weekend of the Chris Benoit double-murder and suicide case.  Benoit, who was originally booked to face CM Punk for the vacant ECW World Championship, legitimately no-showed.

Night of Champions (2010): Night of Champions (2010) was a professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE) and presented by WowWee's Paper Jamz, that took place on September 19, 2010, at the Allstate Arena in Rosemont, Illinois.  It was the third annual event to be promoted solely under the Night of Champions name and the tenth annual event under the Vengeance/Night of Champions chronology.  Similar to the previous three events, the concept of the show was that every championship in the company was defended at the event.  It was also the first Night of Champions event to feature a non-title match.  Seven matches took place at the event.  The event had 165,000 buys, down on the 2009's Night of Champions figure of 267,000 buys.

WWE Night of Champions: Night of Champions was a professional wrestling pay-per-view (PPV) event produced by professional wrestling promotion WWE.  The event was previously known under the name Vengeance, with the inaugural event taking place on December 9, 2001 and replacing the regularly scheduled WWE Armageddon for that year.  The 2002 event featured the Raw and SmackDown!  brands.  The event was made exclusive to the SmackDown brand in 2003, and in 2004 it was made exclusive to the Raw brand.  In 2007, following WrestleMania, all PPV events became tri-branded.  Vengeance took over WWF Fully Loaded's scheduled date in July 2002 and later moved to June in 2005, switching schedules with The Great American Bash.  Night of Champions took over as the June pay-per-view event in 2008 dropping the Vengeance name that themed the same name in 2007 with , moved back to July in 2009 and in 2010, the event moved to September.  In 2016, Night of Champions was replaced on the PPV schedule by Clash of Champions.  Though the concept of Clash of Champions is similar, it is not a direct continuation of Night of Champions.

Tottenham Outrage: The Tottenham Outrage is the name given to an armed robbery and double murder which took place in Tottenham, Middlesex, and Walthamstow, Essex, on 23 January 1909.  It was perpetrated by two anarchists, Paul Helfeld and Jacob Lepidus (sometimes spelled Lapidus), both Jewish immigrants from the Russian Empire.  Both anarchists later committed suicide.

Night of Champions (2012): Night of Champions was a professional wrestling pay-per-view (PPV) event produced by WWE, which took place on September 16, 2012 at the TD Garden in Boston, Massachusetts.  It was presented by Lions Gate Entertainment's "Dredd" and was the fifth annual WWE Night of Champions event (sixth including ) and the thirteenth in the WWE Vengeance/Night of Champions overall chronology.  The theme to the Night of Champions event is that all sanctioned championships are defended on the card.  The event managed to gain 189,000 buys.  That is up from last year's event, which gained a 169,000 buyrate.

Supporting paragraphs: Vengeance: Night of Champions Chris Benoit double-murder and suicide
Answer: 40-year-old