Pedo symbol at 4:19,

And that bathtub with the electric dials looks like a recent edition. Wtf?

That big pentagram on the ground certainly looked like it had been written in blood of some Sort. These sickos thrive off kids and their energy so that's why their attracted to any where kid related, sadly.

This not related to pizzagate per se but an older video I stumbled upon while browsing Youtube just now only because I have investigated pizzagate a little bit did the whole video seem to make sense. He is exploring an old, abandoned school, which has various satanic imagey throughout and underground tunnels. Can't be a coincidence.