I don’t recall any witnesses identifying the DC snipers as white. What I recall were repeated witnesses claiming to have seen a white van and a widespread public assumption that the shooter(s) was white based on the nature of the crime.
A former FBI analyst (I have a mental block and can’t think of his correct position) kept telling us the shooters were White racists.
He was a complete total idiot as there was nothing to suggest that except the way his mind worked.