Some years ago there was a rash of sudden deaths in the UK Defence industry, including, IIRC, at least 2 rather bizarre suicides.
Since it struck a little close to home I kept an eye out. (While I didn't know any of the people and I was no longer working in Defence one of the dead HAD worked on a project I had also been involved with).
But the run stopped, no hard evidence was ever produced to suggest that there was any link and it seems to have been all a coincidence.
Now these deaths actually made the mainstream press. The list you linked to reminds me more of the list of deaths supposedly linked with President Clinton. I suspect there will be a similar lack of substance when the details are examined.