The Dallas and Texas A&M communities are mourning the tragic and unexpected death of Brian Williams, a former standout safety for the Texas A&M Aggies football team. Williams, just 24 years old, died after suffering a severe heatstroke while participating in a weekend half marathon, according to family reports. Williams, who was raised in the Oak Cliff area of Dallas, graduated from Bishop Dunne Catholic High School, where he was a standout on the football field. His talent,