Aaron killed himself two years to the day of this whole ordeal starting.

Either that's an incredible coincidence, or Aaron decided to take his life as a political statement. Given his past actions, that's an easy assumption to make.

Also, his request for a plea deal was denied in very harsh terms two days before Aaron took his own life, so even knowing just that and the fact that he really did not want to be labeled a felon, it's easy to make the connection.

Finally, Aaron's own family, partner and legal representation believe they were related, i.e. those closest to Aaron believe the federal trial was a major cause.

Of course, he also had a history of dealing with depression; I don't think anyone's denying that.

Thanks for the summary.

What do you want - an algorithm that says the investigation was 72.3% +/- 5% margin of error responsible for his suicide?

There's no way to know, but it's probable that it's a large contributing factor based on what Lessig et al. wrote.