Rename?

The names we give things can be so interesting.  In English today's date on the Christian calender is called Good Friday.  When you think about it this is kind of an odd name, since today is the day Jesus was supposedly killed.  Wouldn't a more appropriate name be Evil Friday?  Or Murder Friday?  Of course since he supposedly died at the hands of Roman law enforcement perhaps the appropriate name should be Execution Friday.  For that matter Easter could be called Good Sunday, since that's when Jesus supposedly came back from the dead.