Update 1:15 p.m.: Co-founder Lance Spivey said in a statement that the Heirs to the Confederacy did not approve the vandalism, an act which he said "goes against everything we stand for," the News and Observer reported Monday evening.
"If these acts of vandalism were in fact committed by any member(s) of Heirs, then the perpetrator(s) were acting on their own, in a renegade capacity and unsanctioned by the Board of Directors," the statement said. "I, and the Heirs to the Confederacy as a whole, will have no part in the damaging, desecration, or destruction of any historical monument, memorial, or marker, and actually support the protection of all such monuments, be they Confederate or otherwise."
Spivey also told the New York Times that he was looking into the vandalism Monday. Spivey said that two members of the Heirs to the Confederacy were on campus Saturday night, although he did not have information that suggests they committed the vandalism, the New York Times reported.
Nearly a week before March 16, when Spivey carried a camouflage-skin pistol on UNC's campus, he wrote a blog post regarding his views about the connection between Confederate monuments and freedom.
"I am willing to die for what I believe; I am more so ready to kill for it," Spivey wrote in the post.
Spivey also wrote that in order to preserve both freedom and Confederate monuments, supporters must fight back, "not with equal violence, but with excessive violence."
One of the two people who vandalized the monument commemorating slaves and people of color who helped build the University has been linked to a neo-Confederate group, according to UNC officials.
A UNC Police officer noticed the Unsung Founders Memorial, erected in 2005, had "racist and other deplorable language" written with permanent marker at around 1:30 a.m. Sunday. The monument was also doused with urine, according to the police report. Through security footage, officials confirmed that one of the vandals is affiliated with the Heirs to the Confederacy group.