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Input: Brandon Judd  president of the labor union  said  Agent Rogelio Martinez  died Sunday of blunt force trauma to the head.
Federal authorities have not yet said how  Martinez  was killed.
Authorities have been searching for witnesses and potential suspects after  Martinez  was killed and a fellow agent was seriously injured. Officials with U.S. Customs and Border Protection and the Border Patrol said in a statement that the pair were âresponding to activityâ near Interstate 10 in Van Horn  Tex.  when they were harmed. The other agent called for help  and other agents provided medical care and took them to a hospital.
Following news that an agent had been killed  President Trump appeared to connect  Martinez âs death to border security and plugged his plans for a border wall on Twitter on Sunday night.
Sen. Ted Cruz (R-Tex.) said on Twitter  without any further explanation  that  Martinez  and the other agent were âattackedâ and he also linked the incident to security on the border with Mexico.
Agent Rogelio Martinez  your service and sacrifice will never be forgotten. Our hearts go out to your family. pic.twitter.com/WVuW8C2N8n â USBPChief (@USBPChief) November 20  2017
Isaac Morales  who was stabbed in a bar parking lot in El Paso  was the only agent besides  Martinez  to die in 2017. Three agents died in 2016; two of them in car accidents  one of a heart attack while on bike patrol.

Slain border agent may have been beaten to death by rocks in âgrisly scene â union leader says