Something I noticed when I first saw David Hogg, is that he has dead eyes.

His eyes show NO expression!

I haven't watched all the clips of him doing all these interviews, but from what I have seen: not once any hint of sadness in his eyes. Just no type of emotion eminating from them. His eyes are dead. He is cunning, lying sociopath, and the apple didn't fall far from the tree.

As a side note, I always notice how all the mass shooters, and even other people who commit horrible acts of crime; their eyes are always dead. No spark inside.