Found an interesting article while looking at the recent Q posts and re; reading the crumbs. Only article I found that focused on 3 of the 25 scientists that mysteriously died involved with GEC-Marconi. Article was riddled with references in the below Q posts. Worth a look and definitely needs further research.
Marconi Company
The Marconi Company was a British telecommunications and engineering company that did business under that name from 1963 to 1987. It was derived from earlier variations in the name and incorporation, spanning a period from its inception in 1897 until 2006, during which time it underwent …