Trump's response fits into a disturbing pattern — he responds immediately, before the evidence is in, when he thinks the perpetrator(s) are Muslim, but he is very slow to respond when the victims are Muslim and/or the attackers are white. 

In Charlottesville, nearly 24 hours pass before Trump blames "many sides."

In a Kansas City bar, a white man shoots 2 Indian men after telling them to get out of "his country" and berating them with racial them with racial slurs. It takes Trump several days to comment.

On a train in Portland, a man is verbally abusing 2 Muslim women kills 2 men who confront him. Trump issues a statement 2 days later.