I’d like to see the file too (didn’t see it in the list).
My money is on the FBI knowing it was an ANTIFA guy and/or someone they were using as an informant.
That story disappeared within just a few days when they like to milk this shit forever. Killed the most of any mass shootings. Targeted Country Music fans (more likely to be Trump supporters). He had a personal camera on site where he obviously made a video recording, and there is a piece of paper that looks suspiciously like it could have been a suicide or other explanatory note. But FBI can’t figure out what his motive is and lets people break into his house to destroy evidence.
Perfectly obvious to me the FBI knows exactly why he did it, but it didn’t forward the narrative so they buried it.
Not to mention that they were leaning on the Sheriff to keep his mouth shut.