Thomas Beckett was praying when he was murdered
The knights that killed him said that they had been sent by the King
Beckett excommunicated the King
Beckett and Henry III hated each other before Beckett became the Archbishop of Canterbury
Beckett wanted to be the Archbishop of Canterbury
Henry III wanted to be able to appoint archbishops and bishops and Beckett refused to put his seal on it
Henry III was angry at Beckett for fleeing England
When 4 knights heard that the King was angry that Beckett had fled they decided to take it upon themselves to teach him a lesson by killing him
The knights did not feel triumph or joy after they had killed Beckett
Sir Reginald told Beckett that if he didn't kill him then it would have cost him his life
The knights did not ask Beckett to reverse the excommunications on the bishops before they killed him
Edward Grim tried to defend Becket but the knights cut his arm off as they were about to cut Beckett's head off
The four knights entered Canterbury on the Tuesday of Christmas week
The four knights had respect for the Cathedral and for Beckett