My thoughts on what Good Friday is all about can be found here. I won't belabor the point- you can read that if you want. But it is interesting- if you know the history- how Jerusalem goes from loving Jesus one Sunday, to a week later, feeling that their expectations have been so unmet that they're ready to kill by the next Friday.
Not a day to feel great about humanity and the question of our inherent good or bad nature, that's for sure. It's not about Jews or Pharisees or Jerusalem, it's about what's in each of our hearts and how we react when we are disappointed.
Just some thoughts to ponder, whether you celebrate Easter or not.