The 35-time Barnaby Jack, specialist in issues intelligence officer who died this summer under suspicious circumstances, was not killed by CIA agents, as conspiracy theorists wanted. A coroner's report listed the cause of death as "acute mixed drug poisoning."
The forensic report presented by the TheVerge shows that the hacker died of overdose of cocaine, heroin, alprazolam and diphenhydramine.
Jack died shortly before her presentation at the 2013 Black Hat conference on remote hacking of medical devices such as insulin pumps and pacemakers.
Shortly after his sudden death, since there was no official news about how he died, many suspected the involvement of some secret service of USA, like the CIA.
Below is Barnaby Jack's presentation video for ATM hacking.