Bill McCartney, who coached Colorado to its only football national championship in 1990, has died. He was 84.

McCartney died Friday night “after a courageous journey with dementia,” according to a family statement. His family announced in 2016 that he had been diagnosed with dementia and Alzheimer’s.

“Coach Mac touched countless lives with his unwavering faith, boundless compassion, and enduring legacy as a leader, mentor and advocate for family, community and faith,” the family said in its statement. “As a trailblazer and visionary, his impact was felt both on and off the field, and his spirit will forever remain in the hearts of those he inspired.”

McCartney remains the winningest coach in Colorado history, with a record of 93-55-5. He was inducted into the College Football Hall of Fame in 2013.

“I am very saddened at the passing of Coach Mac,” said Colorado athletic director Rick George, who remained lifelong friends with McCartney after he hired George as his recruiting coordinator in 1987. “Coach Mac was an incredible man who taught me about the importance of faith, family and being a good husband, father and grandfather. He instilled discipline and accountability to all of us who worked and played under his leadership.”

McCartney led Colorado to its best season in 1990, when the team finished 11-1-1 and beat Notre Dame in the Orange Bowl to clinch the national title. That season included a win at Missouri where the Buffaloes scored the winning touchdown on a “fifth down” as time expired — one of the biggest blunders in college football history.

The chain crew didn’t flip the marker from second to third down and the officials failed to notice. On fourth down — fifth in actuality — Charles Johnson scored to keep Colorado’s national title hopes afloat. Asked later if he would consider forfeiting the game, McCartney pointed to poor field conditions and didn’t think it was a fair test.

McCartney coached at Colorado from 1982-94, retiring early to spend more time with his wife, Lyndi, who died in 2013. Following his retirement, he worked full time at Promise Keepers, a ministry he started in 1990 after converting from Catholicism and whose aim is to encourage “godly men.”

As a football coach, McCartney’s impact at Colorado was immense. During a six-year span in the late ’80s and early ’90s, his teams were right up there with the powers of the time. McCartney coached Colorado to three Big Eight titles, 10 consecutive winning seasons in league competition and a 58-29-4 mark in conference play, all still school bests.

His 1989 team went 11-1 and lost to Notre Dame 21-6 in the Orange Bowl. That set the groundwork for a national-title team that featured quarterbacks Darian Hagan and Charles Johnson, tailback Eric Bieniemy, and a stalwart defense that included Alfred Williams, Greg Biekert, Chad Brown and Kanavis McGhee.

To think, McCartney nearly chose a basketball coaching career.

Born in Riverview, Michigan, McCartney played center and linebacker at the University of Missouri, where he met his wife. He later coached basketball and football at a high school in Dearborn, Michigan. His teams were good, too, each capturing the state title in 1973.

He caught the eye of Michigan football coach Bo Schembechler, who wanted McCartney to join his staff at Michigan. If that weren’t enough, Michigan basketball coach Johnny Orr urged him to join his staff.

McCartney couldn’t decide. His wife gave him some simple advice — follow his heart.

He stepped into the world of college football.

McCartney learned under Schembechler for eight seasons, until an opportunity came up to guide his own team. When the late Chuck Fairbanks left Colorado to become involved with the New Jersey Generals in the upstart United States Football League, McCartney asked Schembechler if the Hall of Fame coach would put in a good word for him.

Schembechler’s backing carried a lot of weight, and then-Colorado athletic director Eddie Crowder gave McCartney the position.

It was a rough start for McCartney with only seven victories in his first three seasons, including a 1-10 finish in 1984. Then things started to turn.

His last season with the Buffaloes was 1994, when the team went 11-1 behind a roster that included Kordell Stewart, Michael Westbrook and the late Rashaan Salaam. That season featured the “Miracle in Michigan,” with Westbrook hauling in a 64-yard TD catch from Stewart on a Hail Mary as time expired in a win at Michigan. Salaam also rushed for 2,055 yards and won the Heisman Trophy.

McCartney also groomed the next wave of coaches, mentoring assistants such as Gary Barnett, Jim Caldwell, Ron Dickerson, Gerry DiNardo, Karl Dorrell, Jon Embree, Les Miles, Rick Neuheisel, Bob Simmons, Lou Tepper, Ron Vanderlinden and John Wristen.

In recent years, McCartney got to watch grandson Derek play defensive line at Colorado. Derek’s father, Shannon Clavelle, was a defensive lineman for Colorado from 1992-94 before playing a few seasons in the NFL. Derek’s brother, T.C. McCartney, was a quarterback at LSU and is the son of late Colorado quarterback Sal Aunese, who played for Bill McCartney in 1987 and ’88 before being diagnosed with stomach cancer in 1989 and dying six months later at 21.

Growing up, Derek McCartney used to go next door to his grandfather’s house to listen to his stories. He never tired of them.

Derek soaked up the tales about Salaam winning the Heisman Trophy and how Colorado beat Notre Dame in the Orange Bowl to cement the national title. His grandfather had a picture of the famous play at Michigan and a button to push to hear the broadcast audio.

When playing for Colorado, hardly a day would go by when someone didn’t ask Derek if he was somehow related to the coach.

“I like when that happens,” Derek said.

Reporting by The Associated Press.

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