'We're getting overrun and the danger is increasing... we need to open our eyes"

The Sheriff leading the investigation into the brutal slaying of a Border Control Agent by two illegal immigrants has revealed local farmers in his county have reported spotting gangs of armed Mexicans 'in military fatigues' marching through their fields.

Sheriff Larry Spence’s department played a key role in catching Ismael Hernandez and Gustavo Tijerina after they allegedly gunned down hero officer Javier Vega Jr. in front of his mother, father, wife and three sons while they were on a family fishing trip.

Since their capture,Fox News reported that the suspects are both Mexican nationals who were in the U.S. illegally and have been deported SIX times between them....

Speaking to MailOnline from his office in Raymondville, Sheriff Spence said that while the current political focus at the border had been on the humanitarian crisis posed by tens of thousands of undocumented children arriving alone in the US, an increasing 'criminal element' was being ignored.

Read the full article - which includes more details and several photos.