There is a ton of evidence that this was a terror attack. First a talk on the Rachel Maddow show followed by a ton of evidence (in articles) of how this sort of terrorism (white on black crime) is actually an epidemic;
Many see terrorism in church shooting - Tarek Ismail, former Columbia Law Counterterrorism fellow, talks with Steve Kornacki about what defines an act of terror and how that definition fits the murderous shooting attack on a prayer group in Charleston, South Carolina's Emanuel AME Church.
NY Times: The Growing Right Wing Terror Threat (They kill more people than Muslims extremists)
Addicting Info: Why Don’t We Know Much About Right-Wing Terrorists? Conservatives Fired The Guy Studying Them
Article Extracts from Salon;
Blaming "mental illness" is a cop-out -- and one that lets us avoid talking about race, guns, hatred and terrorism
Dear white allies after Charleston: Please understand this about your privilege
The Charleston shooting is a textbook example of White Privilege. Let’s start with the manner in which the cops apprehended Dylann Storm Roof, the murderer and domestic terrorist.