"He was a hero that shielded his daughters. His wife and girls just lived through the unthinkable and unimaginable. My baby brother just turned 50 and had so much life left to experience," writes his sister.
"This is an obviously catastrophic failure and NO excuses should be made, or even attempted," says Bongino, who served in the Secret Service for 12 years.
"When I watched that violent bullet strike my husband, Donald, I realized my life, and Barron's life, were on the brink of devastating change," writes the former first lady.
