President Barack Obama and Mitt Romney have reacted to a Wednesday shooting at the Washington DC headquarters of the Christian conservative group Family Research Council (FRC).

The FBI took 28-year-old Floyd Lee Corkins into custody after he allegedly walked into the group's lobby and shot the security guard before he was wrestled to the ground. The guard, identified as Leo Johnson, was taken to a nearby hospital and is in stable condition.

Corkins, who previously had volunteered at a local gay community center, is believed to have acted alone. Reports that he was carrying Chick-Fil-A “materials” suggest that he was acting against the beliefs of the FRC, which is opposed to gay rights and received financial support from the fast-food chain. Chick-Fil-A has become a cause celeb among conservatives who have rallied to CEO Dan Cathy's side after he was criticized for saying that gay marriage is “inviting God's judgment on our nation.”

(Related: Chick-Fil-A Wednesdays support Dan Cathy's gay marriage opposition.)

“There is no place for such violence in our society,” said Romney, the likely Republican presidential nominee.

White House spokesman Jay Carney said Obama expressed a similar sentiment and concern for the security guard and his family: “This type of violence has no place in our society.”