I think the most interesting aspect of the mystery with him so far is why he chose this spot - with students from Christian universities having a party night to country music. We saw MAGA hats and Reagan shirts in the photos of people who survived. Did he specifically target young conservatives? It is reminiscent of the Vegas shooting in that the choice was a more conservative crowd.
"...Did he specifically target young conservatives?..."
Have any idiots seized on the name of the bar yet? "Borderline" Border. Line. OMG! BORDER!! Clearly Trump's rhetoric on border security led to this. [/s]