The Messiah of the Third Jewish-Roman War Tortured Christians

Bar Kokhba’s approach to religion was rigorously exclusive and he had no time for Christians. The church fathers returned the compliment. Justin, writing contemporaneously, claimed: “In the present war it is only the Christians whom Barchochebas [i.e., Bar Kokhba], the leader of the rebellion of the Jews, commanded to be punished severely if they did not 
1) deny Jesus as the Messiah and
2) blaspheme him

Jerome goes further: “Barcocheba, leader of a party of the Jews, because the Christians are not willing to help him against the Roman army, murders them with every sort of torture.” 

Christians regarded Bar Kokhba as a butcher [they didn’t kill by little bullets back then], a bandit, and a con man.

Anthony Everitt (Bestselling Author of Cicero), Hadrian and the Triumph of Rome
Chapter 13: “May His Bones Rot!”
p. 301
New York: Random House, 2009