RIP Agent Rogelio Martinez, You died defending your country from foreign threats hellbent on breaking your laws. Border agent killed, another injured during ‘attack’ near Texas southern border A U.S. Border Patrol agent was killed in the line of duty Sunday while patrolling the Big Bend Sector of Texas along the southern border with Mexico. Agent Rogelio Martinez, 36, died of injuries sustained while responding to “activity” near Interstate 10 in the Van Horn Station area, according to a news release from U.S. Customs and Border Protection. Martinez and his partner, who was injured, were transported to a hospital. The partner, who was not identified, remains hospitalized in serious condition. Border Protection spokesman Carlos Diaz told The Associated Press the FBI has taken over the investigation. Martinez, who was from El Paso, worked as a border agent since August 2013. President Trump pushed the need for his proposed U.S.-Mexico border wall Sunday night following the incident, tweeting: "Border Patrol Officer killed at Southern Border, another badly hurt. We will seek out and bring to justice those responsible. We will, and must, build the Wall!" Donald J. Trump ✔@realDonaldTrump Border Patrol Officer killed at Southern Border, another badly hurt. We will seek out and bring to justice those responsible. We will, and must, build the Wall! 8:29 PM - Nov 19, 2017 11,09411,094 Replies 15,97015,970 Retweets 60,28660,286 likes Twitter Ads info and privacy Elaine Duke, the acting secretary of the Department of Homeland Security, released a statement Sunday calling Martinez’s death a “tragic event.” “Earlier this morning, I was notified that Border Patrol Agent Rogelio Martinez died as a result of serious injuries suffered while on patrol in the Big Bend Sector of our southern border in Texas. Agent Martinez was responding to activity while on patrol with another agent, who was also seriously injured,” the statement read.