The conspiracy folks have spoken a lot about the mysterious deaths in recent years of biological and chemical weapons experts.
I cannot vouch for this source but it does report on some of the deaths and reports on the conspiracy in general.
I remember the reports (2001?) of Dr. Don Wiley disappearance while crossing a bridge spanning the Mississippi River. He had just left a banquet for fellow researchers in Memphis.
The link in the article to “conspiracy theories” talks about the Mitre Corporation where Wheeler worked and cyberwarfare. Wild stuff.