"Whistle-blowers go to significant efforts to get us material and often very significant risks," Assange said. "As a 27-year-old, works for the DNC, was shot in the back, murdered just a few weeks ago for unknown reasons as he was walking down the street in Washington."
When the interviewer interjected that the murder may have been a robbery, Assange pushed back.
"No," he said. "Theres no finding. So Im suggesting that our sources take risks."
Then there's the reward Wikileaks is offering for info that nails Rich's killer. No reason to do that unless Rich was an informant.
WikiLeaks
✔@wikileaks
ANNOUNCE: WikiLeaks has decided to issue a US$20k reward for information leading to conviction for the murder of DNC staffer Seth Rich.
11:58 AM - 9 Aug 2016
http://www.foxnews.com/politics/2016/08/10/assange-implies-murdered-dnc-staffer-was-wikileaks-source.html
A working link: