A border agent killed a migrant who crossed into Starr County. Eight months later, it's still under investigation.

Shortly before Christmas last year, a Border Patrol agent shot and killed Isaias Sanchez Barbosa, a 31-year-old Mexican, after he crossed the Rio Grande with a group of other migrants into Starr County.

The federal agent said he shot Sanchez Barbosa in self defense amid a fight that broke out when agents tried to make an arrest - and as the migrants were trying to retreat across the border.

More than eight months later, the fatal shooting remains under investigation by the Texas Department of Public Safety and the Office of Professional Responsibility for Customs and Border Protection, the agency overseeing Border Patrol.