Brother of former MLB pitcher Tyler Walker missing along with other family members following Texas floods

Brother of former MLB pitcher Tyler Walker missing along with other family members following Texas floods

Mark Walker, his wife and their 14-year-old son also remain missing

Tyler Walker of the San Francisco Giants pitches during the game against the Los Angeles Dodgers at AT&T Park in San Francisco, California on Sept. 9, 2007. (Brad Mangin/MLB via Getty Images)

San Francisco Giants relief pitcher Tyler Walker walks off of the field after getting the final out of the eighth inning against the Chicago Cubs at Wrigley Field on July 11, 2008. (Jerry Lai/USA TODAY Sports)

A Texas Department of Public Safety Trooper and Kerr County Sheriff's deputy assist a rescue diver out of the water at a search and rescue site along the Guadalupe River after a flash flood swept through the area, Monday, July 7, 2025, in Ingram, Texas. (Eli Hartman/AP Photo)