Lets look at the bible first
Paul, makes a special point of blaming the Jews for the death of Jesus: "[the Jews] killed the Lord Jesus and the prophets, and persecuted us. How displeasing they are to God! How hostile they are to all men. They even tried to stop us from preaching to the Gentiles...This is the last full measure of the sins they have always committed. And now God's wrath has at last fallen upon them." (Thessalonians 1,2)
The hostility that the Christians felt toward the Jews can be seen readily from the writings of the early fathers of the Christian Church. (See: What Did They Think of the Jews? by Allan Gould, pp. 24-25.)
From John Chrysostom, the Patriarch of Constantinople, we get this:
"Jews are the most worthless of men- - they are lecherous, greedy, rapacious - they are perfidious murderers of Christians, they worship the devil, their religion is a sickness ... The Jews are the odious assassins of Christ and for killing god there is no expiation, no indulgence, no pardon. Christians may never cease vengeance. The Jews must live in servitude forever. It is incumbent on all Christians to hate the Jews."
From Gregory of Nyssa, we get more of the same:
"Slayers of the lord, murderers of the prophets, adversaries of god, haters of god, men who show contempt for the law, foes of grace, enemies of the father's faith, advocates of the devil, brood of vipers, slanderers, scoffers, men whose minds are in darkness, leaven of the Pharisees, assembly of demons, sinners, wicked men, stoners and haters of righteousness."
In some places, such calumny exploded in a wave of massive anti-Jewish violence and the murder of thousands of Jews in Europe and the Middle East during the first Crusade from 1096-1099. (Some 10,000 Jews of an estimated population of about 20,000-30,000 were murdered in 1096 as the first Crusade got under way.)
So its clear here that the Christans accuse the Jews of conspiring to kill Jesus (upon him peace). Why would you care about what muslims think then?