WASHINGTON (WJZ) — A man opened fire at the headquarters of the Family Research Council, an organization in the middle of some of the most emotional issues facing the nation.

Kai Jackson has the investigation into whether this was a hate crime or an act of domestic terrorism.

Police are still trying to determine why the gunman started shooting, yet an FBI agent says it’s clear the guard who was shot is the hero.

It was a chaotic scene in the streets of Washington, D.C. Wednesday. Police say it followed a shooting in the morning at the Family Research Council on G Street.

Police say the suspect is 28-year-old Floyd Lee Corkins of Herndon, Va.

Investigators say Corkins walked into the headquarters of the conservative Christian lobbying group. When a guard asked Corkins where he was going, police say the man pulled out a gun and shot the guard.

The injured guard and other guards apparently wrestled Corkins to the ground, disarmed him and waited for police.

“I would say that the security guard in this case is a hero, as far as I’m concerned. He did not allow the armed person past the front,” said D.C. Police Chief Cathy Lanier.

Though early in the investigation, the FBI is working the case because there are concerns this might be a hate crime or domestic terrorism.

“Interviews still are ongoing with both the victim–the security guard who was shot–as well as witnesses,” said FBI spokesperson Jacqueline McGuire.

The guard has been identified as Leo Johnson. The Family Research Council issued a statement saying its concern is with the guard and his family.