A Cheyenne Mountain High School graduate died in a car crash in Arizona that claimed three lives early Friday morning, friends and family said.
Keaton Allison, 21, was a student at Grand Canyon University, a Christian school in Phoenix.
"He just really loved everyone and wanted everyone to feel loved all the time," said his sister, 24-year-old Shelbe Allison. "He really built others up."
A car with Colorado license plates was traveling in the wrong direction on a Phoenix freeway and collided with a car with North Carolina license plates shortly after 2 a.m., according to the Arizona Department of Public Safety.
Allison died at the scene, as did two sisters, ages 18 and 20, in the other car.
One of the sisters was also a student at Grand Canyon University, a university spokesman said.
Officials are continuing to investigate the crash and have not released a cause.
Allison loved the outdoors and was "a devout Christian," said his father, Tyler Allison. In high school, he played hockey, golf and volleyball, and he loved fishing and hunting.
In college, he was involved with Young Life - a Colorado Springs-based Christian nonprofit. He was a Young Life leader, which enabled him to work with high school students. "His goal was to reach as many of those kids as possible," his dad said.
Allison dedicated much of his time to Young Life, through which he impacted a large number of people, said Cole Anderson, a Cheyenne Mountain graduate and Grand Canyon University student.
"He touched a lot of people's hearts," Anderson said. "He definitely touched mine."
Anderson and Allison became friends as kids, when they were neighbors and "just did everything together."
"He's been like my brother since I was little," Anderson said. "He's always had my back. He's just had the greatest heart ever."
The Associated Press contributed to this report.
Contact Ellie Mulder: 636-0198