I was in the hospital there after being wounded in Vietnam. Now let me see a vehicle crashes though a gate at a military base in it is a Saudi and explosives and they are seeking a motive?

How about the Saudi is a Muslim and he is a Jihadist just like his brother that took now the twin towers and he wanted to kill American soldiers!

But I bet they can find its work place violence or just the result of some lone wolf malcontent!