9. The beheading of St Paul
8. The (upside-down) crucifixion of Peter
7. The woman Jesus refuses to condemn to a legal execution (aka, the woman caught in adultery)
6. The whipping and crucifixion of Andrew (on an X-shaped cross)
5. The stoning and clubbing of James, Jesus' brother.
4. The execution of Jude (by arrows)
3. The assassination of Archbishop Oscar Romero
2. The Hanging of Dietrich Bonhoeffer
1. God's mercy for Cain (after Cain murdered Abel)
And in case that isn't enough: What about Jesus' own crucifixion?