Hard? He spelt out the motive, just like the Orlando shooter did. But he doesn't want to focus on black or Islamic radicals. 

Via Weekly Standard: 

President Obama said at a Saturday press conference in Poland that it is "very hard to untangle the motives" of the shooter in Dallas who killed five police officers Thursday evening.

"First of all, I think it's very hard to untangle the motivers of this shooter," said Obama. "I'll leave that to psychologists and people who study these kinds of incidents…I think the danger is that we somehow suggest the act of a troubled individuals speaks to some larger political statement across the country."

Watch the video below, which juxtaposes Obama's statement with that of Dallas police chief David Brown, who said the suspected shooter, the now deceased Micah Xavier Johnson, "wanted to kill white people, especially white officers."