No he doesn’t. There’s no evidence anywhere that WikiLeaks helped cause anyone’s death anywhere in the world. This smear has been enjoying renewed popularity since it became public knowledge that he’s being prosecuted for the Manning leaks, the argument being that the leaks got US troops killed.
This argument is stupid. In 2013 the Pentagon, who had every incentive to dig up evidence that WikiLeaks had gotten people killed, ruled that no such instances have been discovered.
This is an excerpt from the mega-article “Debunking All The Assange Smears”.