Sixteen members of Congress are demanding that the federal government investigate the death of Anastasio Hernandez Rojas, an undocumented immigrant who tased and beaten by U.S. Border Patrol agents.

Although Hernandez Rojas’ death occurred two years ago, new footage released in the PBS documentary “Crossing the Line” calls into question the use of force by agents. According to the documentary, Hernandez Rojas was on the U.S.-Mexico border in June 2010 when he was hog-tied, surrounded by more than a dozen agents, then shot with a stun gun while pleading for help.

U.S. Customs and Border Protection (CBP) insisted that Hernandez Rojas’ behavior necessitated the use of a baton and stun gun. CBP reports maintained that he “became combative,” and the baton and stun gun were used to “subdue the individual and maintain officer safety.” He died shortly after the incident. But some say the new footage reveals the use of excessive force by border agents.

Demanding justice for Hernandez Rojas and reform of the Border Patrol’s use-of-force policies, 15 members of the House of Representatives and Sen. Bob Menendez (D-N.J.) wrote letters on Thursday to Department of Homeland Security Secretary Janet Napolitano, Attorney General Eric Holder and the Office of the Inspector General.

Read the full story at The Huffington Post