http://sn.1w6.org/file/bobjonkman-20170404T233224-t5h53e8.html
And there's the terrifying story of Barnaby Jack, who was to give a Defcon talk revealing how to send a pacemaker a signal to deliver a high-voltage shock from a distance. He was found dead days before his scheduled appearance. https://www.rt.com/usa/hacker-pacemaker-barnaby-jack-639/