Jace Prescott, brother of Dallas Cowboys quarterback Dak Prescott, passed away this morning. The death was confirmed by Jason Pugh, Northwestern State University's assistant athletic director for media relations.

Jace Prescott, the middle of three brothers, was 31.

Nicknamed "Moose," the formidable 6-foot-6 former Haughton High star was nearly 400 pounds during early in his career as an offensive lineman for the Demons (2008-10).

"He was a great kid who dominated games," Prescott's high school football coach, Rodney Guin told The Times on Thursday. "He was a pleasure to coach -- as were all the Prescott boys."

More:Late Haughton star Jace Prescott was a 6-foot-6, nearly 400-pound 'teddy bear'

Prescott earned honorable mention on the LHSAA's 2006 Class 4A All-State football team and was a First-Team Times' 2006 All-City Football selection. He was later named to the 2007 All-City Track team in the shot put.

Last year, Jace Prescott was featured in a Campbell's "Champions of Chunky" commercial with younger brother Dak and older brother, Tad.

Even before Dak Prescott began his professional career, he pointed to his brother as motivation to make it to the top level.

I'm playing for my brothers," Dak said. "Also for my grandmas, aunts, uncles, dad and friends. Coach (Rodney) Guin -- anybody who helped me get in this position."

The Fort Worth (Texas) Star-Telegram spoke to Jace Prescott's uncle, Phillip Ebarb, who said Prescott died at his home in Orange, Texas.

The Prescott boys' mother, Peggy, died of colon cancer in 2013.

The Dallas Cowboys released a statement Thursday night: "It is with great sadness and support that we share the news of the passing of Jace Prescott today. The loss of Tad and Dak’s brother is devastating. At this incredibly difficult time, the Prescott family asks only for prayers and respect for their privacy."

Jamie Gressett, then "Miss Stewart," taught Tad Prescott at Haughton. And along came Jace.

The former English teacher at Haughton will "never forget" his introduction.

"(Jace) was always a sweet, quiet guy who was like a big teddy bear," Gressett told The Times on Thursday. "The first day of class, he said: 'My name is Jace Prescott, and my favorite color is pink.'

"I liked having Jace in class and thought the world of him."

Twitter: @RoyLangIII