Question: When was the San Diego State Aztecs baseball team's head coach died who was with the team until 2014?

Context articles: 2017 San Diego State Aztecs football team
1970 San Diego State Aztecs football team
San Diego State Aztecs men's soccer
2014 San Diego State Aztecs football team
San Diego State Aztecs baseball
Viejas Arena
Tony Gwynn
2016 San Diego State Aztecs football team
2009 San Diego State Aztecs football team
2012 San Diego State Aztecs football team

The 2017 San Diego State Aztecs football team represents San Diego State University in the 2017 NCAA Division I FBS football season.
 The Aztecs are led by seventh-year head coach Rocky Long and play their home games at SDCCU Stadium.
 SDSU is a member of the Mountain West Conference in the West Division.
The 1970 San Diego State Aztecs football team represented San Diego State College during the 1970 NCAA University Division football season as a member of the Pacific Coast Athletic Association.
 The team was led by head coach Don Coryell, in his tenth year, and they played their home games at San Diego Stadium in San Diego, California.
 They finished the season as co-champions of the conference, with a record of nine wins and two losses (9–2, 5–1 PCAA).
The San Diego State Aztecs men's soccer team is a varsity intercollegiate athletic team of San Diego State University in San Diego, California, United States.
 The team is an associate member of the Pac-12 Conference, which is part of the National Collegiate Athletic Association's Division I.
 San Diego State's first men's soccer team was fielded in 1968.
 The team plays its home games at SDSU Sports Deck in San Diego.
 The Aztecs are coached by Lev Kirshner.
The 2014 San Diego State Aztecs football team represented San Diego State University in the 2014 NCAA Division I FBS football season.
 The Aztecs were led by fourth-year head coach Rocky Long and played their home games at Qualcomm Stadium.
 They were members of the West Division of the Mountain West Conference.
 San Diego State finished the season 7–6, 5–3 in Mountain West play to finish in a share for first place in the West Division.
 However, due to Mountain West tiebreaker rules, because of their head to head loss to Fresno State they were not considered division co–champions.
 They were invited to the Poinsettia Bowl where they lost to Navy 16–17.
The San Diego State Aztecs baseball team is the college baseball program that represents the San Diego State University.
 Along with the university's other athletic teams, the baseball team became a member of the Mountain West Conference during the 1999–00 academic year.
 Previously, the baseball program competed in the Western Athletic Conference.
 The Aztecs play in Tony Gwynn Stadium, on the SDSU campus in San Diego, California.
 From 2003 until his death in 2014, Tony Gwynn was the program's head coach.
Viejas Arena at Aztec Bowl (formerly named Cox Arena), located on the San Diego State University (SDSU) campus in San Diego, California, is the home of the San Diego State Aztecs men's basketball and women's basketball teams.
 Viejas Arena opened its doors to the campus and community in July 1997 and seats 12,414 for basketball and up to 12,845 for concerts.
 The facility also hosts SDSU's commencement ceremonies.
 Previously, the Aztecs played at Peterson Gymnasium also on the SDSU campus.
 However, the men's basketball team played most of their home games at the San Diego Sports Arena prior to Viejas Arena's construction.
Anthony Keith Gwynn Sr. (May 9, 1960 – June 16, 2014), nicknamed "Mr. Padre", was an American professional baseball right fielder who played 20 seasons (1982–2001) in Major League Baseball (MLB) for the San Diego Padres.
 The left-handed hitting Gwynn won eight batting titles in his career, tied for the most in National League (NL) history.
 He is considered one of the best and most consistent hitters in baseball history.
 He had a .338 career batting average, never hitting below .309 in any full season.
 Gwynn was a 15-time All-Star, recognized for his skills both on offense and defense with seven Silver Slugger Awards and five Gold Glove Awards.
 He was the rare player in his era that stayed with a single team his entire career, and he played in the only two World Series appearances in San Diego's franchise history.
 He was inducted into the Baseball Hall of Fame in 2007, his first year of eligibility.
The 2016 San Diego State Aztecs football team represented San Diego State University in the 2016 NCAA Division I FBS football season.
 The Aztecs were led by sixth-year head coach Rocky Long and played their home games at Qualcomm Stadium.
 They were members of the West Division of the Mountain West Conference.
 They finished the season 11–3, 6–2 in Mountain West play to be champions of the West Division.
 They represented the West Division in the Mountain West Championship Game where they defeated Wyoming to be crowned Mountain West champions for the second consecutive year.
 They were invited to the Las Vegas Bowl where they defeated Houston.
The 2009 San Diego State Aztecs football team represented San Diego State University in the 2009 NCAA Division I FBS football season.
 The Aztecs, led by first-year head coach Brady Hoke, played their home games at the Qualcomm Stadium.
 They finished with a record of 4–8 (2–6 MWC).
The 2012 San Diego State Aztecs football team represented San Diego State University in the 2012 NCAA Division I FBS football season.
 The Aztecs were led by second-year head coach Rocky Long and played their home games at Qualcomm Stadium.
 This was San Diego State's 14th season in the Mountain West Conference.