Crime scene investigators surround a vehicle believed to have been driven by a Michigan man who opened fire at the Rio Grande Valley Border Patrol Sector Annex building in South McAllen on Monday, July 7, 2025. The man, Ryan Louis Mosqueda, was fatally shot by Border Patrol agents.

Law enforcement believes the attack was a purposeful ambush targeting Border Patrol officials, who play a different role than ICE but serve a major role in how the federal government enforces immigra...