I find that hard to believe. The victims of Buddhist terrorism in Burma are Muslims so why target the Navy Yard? I'm not going to jump to conclusions but if I had to speculate I suspect Alexis has anger issues and was getting back at perceived slights from the Navy.
More: http://abcnews.go.com/US/washington-dc-navy-yard-shooter-aaron-alexis-navy/story?id=20273287 The more that comes out the more it looks like this guy was a pressure cooker ready to blow. How did this guy pass a background check?
They were reporting that he recently had been to Asia,so wouldn't surprise me . Have no idea what his perceived justification might have been , possibly the US arming muslim rebels in syria ? Nothing would surprise me these days .