Problem: Background: Walter Marty "Wally" Schirra Jr. (March 12, 1923 - May 3, 2007), (CAPT, USN), was an American naval aviator and astronaut. He was one of the original seven astronauts chosen for Project Mercury, the first effort by the United States to put humans in space. On October 3, 1962, he flew a six-orbit, nine-hour, Mercury-Atlas 8 mission becoming the fifth American, and ninth human, to travel to space. In the two-man Gemini program, he achieved the first space rendezvous, station-keeping his Gemini 6A spacecraft within 1 foot (30 cm) of the sister Gemini 7 spacecraft in December 1965.
Context: In mid-1966, Schirra was assigned to command a three-man Apollo crew with Donn F. Eisele and R. Walter Cunningham to make the second manned flight test of the Apollo Command/Service Module, with a mission profile identical to Apollo 1. Schirra argued against a repeat mission, and his crew became the backup crew for Gus Grissom, Ed White and Roger Chaffee. Schirra's crew conducted tests in the command module on January 26, 1967, and were enroute to Houston the next day when Grissom, White, and Young were killed in a fire during a test. Schirra's crew became the prime crew of the first manned flight. This became Apollo 7 in the program's revised mission numbering plan, and was delayed to the fall of 1968 while safety improvements were made to the Command Module. Schirra gained a sense of security from having Guenter Wendt, a McDonnell Aircraft employee, as the pad leader responsible for the spacecraft's launch readiness. But since the Apollo contractor was North American Aviation, Wendt was no longer pad leader. After the Apollo 1 accident, Schirra felt so strongly he wanted none other than Wendt as pad leader for his Apollo flight, that he pulled strings with his boss Deke Slayton and North American's launch operations manager Bastian "Buzz" Hello to hire Wendt as Apollo 7 pad leader. Wendt remained pad leader for the remainder of the Apollo and Skylab programs, and stayed on with NASA into the Space Shuttle program before retiring. Apollo 7 was launched on October 11, 1968, making Schirra the first person to fly in space three times. Prior to launch, Schirra had objected because of high winds, which could have injured the astronauts in the event of an abort within the first minute of the mission. After reaching orbit, the Apollo 7 CSM performed space rendezvous and docking exercises with the S-4B stage to simulate retrieving the Lunar Module. On the second day of the mission, the crew conducted the first live television pictures publicly broadcast from inside a manned spacecraft. During the mission, Schirra became sick with a head cold, which he passed to Eisele. Anticipating issues with congestion inside of a sealed spacesuit, Schirra proposed to Mission Control that they would not wear their helmets during reentry. Despite a request from Chris Kraft and Deke Slayton to wear helmets during reentry, Schirra, Eisele, and Cunningham refused and performed reentry without them. Apollo 7 landed southeast of Bermuda on October 22, 1968. Prior to the Apollo 7 launch, Schirra had made the decision to retire after the flight, and left the NASA Astronaut Corps on July 1, 1969. Schirra's last assignment as an astronaut was to conduct the investigation into Neil Armstrong's Lunar Landing Research Vehicle crash.
Question: What was Schirra's role in the first manned flight?
Answer: pad leader responsible for the spacecraft's launch readiness.

Problem: Background: Oscar Gutierrez (born December 11, 1974), better known by his ring name Rey Mysterio Jr. or simply Rey Mysterio (Spanish for "King Mystery"), is an American professional wrestler who is currently wrestling on the independent circuit. Mysterio is best known for his appearances with Extreme Championship Wrestling, World Championship Wrestling and WWE between 1995 and 2015, becoming a three-time world champion in the latter. Widely regarded as the greatest cruiserweight wrestler of all time,, Mysterio is known for his high-flying Lucha libre wrestling style, which is credited with having helped kick-start the emergence of cruiserweight wrestling in the United States in the mid-1990s. Championships held by Mysterio over the course of his career include WWE's World Heavyweight Championship, the WWE Championship, WCW/WWE Cruiserweight Championship, WCW World Tag Team Championship, WCW Cruiserweight Tag Team Championship, WWC World Junior Heavyweight Championship, WWE Tag Team Championship, and WWE Intercontinental Championship.
Context: In 1999, after the two factions of nWo reformed, they demanded that the LWO disband. Mysterio refused to take off his LWO colors and was attacked by the nWo as a result. This led to a match at SuperBrawl IX where Mysterio and tag partner Konnan lost a "Hair vs. Mask match" against Kevin Nash and Scott Hall, forcing Mysterio to remove his mask. After the match, he phoned his uncle to tell him the news. Mysterio has publicly expressed his disappointment over being unmasked: Mysterio later became a "giant killer" by defeating large opponents such as Kevin Nash, Bam Bam Bigelow, and Scott Norton. He faced Nash at Uncensored in a match where Lex Luger interfered and helped Nash in winning the match. Although he participated in several notable matches with some of the heavyweight top card wrestlers, it was made very clear to him that he would never receive a push to become a main eventer. This was due to Eric Bischoff utilizing cruiserweights as alternative, mid-card entertainment as opposed to the more conventional style that led WCW programming. The next night on the March 15 Nitro, he defeated Billy Kidman to win his fifth Cruiserweight Championship. On the March 22 Spring Breakout episode of Nitro, Mysterio got his first shot at the WCW World Heavyweight Championship against champion Ric Flair when the names of (allegedly) nearly everyone in the company were put into a hat and a lottery was held. El Dandy was the lottery winner, but he was injured, and Mysterio took the shot instead. The match ended with a disqualification win for Flair, even though Arn Anderson's interference on Flair's behalf should have theoretically disqualified Flair. The following week, Mysterio and Kidman teamed with each other and defeated Flair's Four Horsemen stablemates Chris Benoit and Dean Malenko to win the WCW World Tag Team Championship, making Mysterio a double champion. Mysterio successfully defended his Cruiserweight Championship against his tag team partner Kidman at Spring Stampede before losing the title on the April 19 episode of Nitro to Psicosis in a Fatal Four-Way match that also involved Juventud Guerrera and Blitzkrieg. On the following episode of Nitro, he defeated Psicosis to win his fifth Cruiserweight Championship. At Slamboree, Mysterio and Kidman lost the World Tag Team titles to Raven and Perry Saturn in a Triangle match, also involving former champions Benoit and Malenko.
Question: why was he a giant killer
Answer:
Mysterio later became a "giant killer" by defeating large opponents such as Kevin Nash, Bam Bam Bigelow, and Scott Norton.