FBI says it’s “close” to identifying shooter but has not identified a motive.

The motive is obviously political. The question is if and how was the motive, served by the act. Finally if there are instigators, accomplices and beneficiaries of the act. Who these might be and how they may benefit from it. 

https://edition.cnn.com/politics/live-news/election-biden-trump-07-13-24/index.html