How we cite our quotes:
In saying this he drew a long poniard which he always carried about him; and not imagining that his adversary had any arms he threw himself upon Candide: but our honest Westphalian had received a handsome sword from the old woman along with the suit of clothes. He drew his rapier, despite his gentleness, and laid the Israelite stone dead upon the cushions at Cunegonde's feet. (9.3)
Candide hardly considers his actions before he kills Isaachar.
If this holy man call in assistance, he will surely have me burnt; and Cunégonde will perhaps be served in the same manner; he was the cause of my being cruelly whipped; he is my rival; and, as I have now begun to kill, I will kill away, for there is no time to hesitate. This reasoning was clear and instantaneous; so that without giving time to the Inquisitor to recover from his surprise, he pierced him through and through, and cast him beside the Jew. (9.8)
Candide treats the act of killing as an ordinary task.
"What, is it you, reverend Father? You, the brother of the fair Cunégonde! You, that was slain by the Bulgarians! You, the Baron's son! You, a Jesuit in Paraguay! I must confess this is a strange world that we live in. Oh, Pangloss! Pangloss! how glad you would be if you had not been hanged!" (14.30)
Candide’s discovery that the Baron is alive and well suggests that death in Candide is only a temporary state.