A security guard at the Family Research Council’s headquarters in Washington, D.C. is being hailed as a hero after he stopped a gunman posing as an intern, taking a bullet in the arm before wrestling the suspect to the ground.

The gunman, identified as 28-year-old Floyd Lee Corkins II, entered the lobby of the organization’s Chinatown headquarters around 10:45 a.m. and expressed disagreement with the conservative group’s policy positions, sources tell Fox News.

When the guard asked him where he was going, he opened fire, according to police.

Read more: Fox News