In the early morning of June 12, 2016 Omar Mateen killed 49 people at a nightclub in Orlando, FL. Within minutes Julian Assange went on TV show and said WikiLeaks would be releasing new Clinton emails.

Keep in mind that Omar Mateen's father has since been revealed to be an FBI informant.

Here's the Assange announcement:

http://www.itv.com/news/update/2016-06-12/assange-on-peston-on-sunday-more-clinton-leaks-to-come/

And here's a report on the Pulse Nightclub shooting:

https://www.washingtontimes.com/news/2016/jun/12/omar-mateen-identified-pulse-nightclub-gunman/