This is from an internet theory originating from an 8chan user that came from some of the Podesta Emails released through Wikileaks. In which there seemed to be some sort of coded language - such as using 'Pizza' and 'Pizza Restaurant' as euphemisms for 'Children' and 'Pedo Gatherings' for example. There were numerous images of children along with strange references from which certain meanings could be construed - I remember one was saying something like, "Thanks for being there for my first pizza. It sure helped with my nerves." To paraphrase.

It seems they have found more evidence.