Williams grew up in Dallas and graduated from Bishop Dunne Catholic High School. Friends and family are mourning the unexpected loss of a football player who grew up in the Dallas area. Brian Williams (Texas A&M)Brian Williams’ DeathWhat we know:Brian Williams died after suffering severe heat stroke during a half-marathon last weekend, according to family members. He was a star football player at Bishop Dunne Catholic High School. What they're saying:"Brian was a first-time all-state honors football player at Bishop Dunne, named the Dallas Morning News' Defensive Player of the Year in 2018.