The obvious linkage is their public comments to the press about the pandemic. The one still living was coerced to recant immediately after regaining consciousness. Tragic and classic example of why Trump emulates the Russian totalitarian leader.

Lt Col Natalya Shcherbakova, 45, was put on a life support machine after falling from a window at Moscow State Clinical Hospital but later died, say police sources.
— Read on www.dailymail.co.uk/news/article-8377329/Russian-forensics-expert-suffering-coronavirus-falls-death-window.html