To my believe Allah (God) never allowed injustice by killing of people just because they do not have the same belief as they.
Here is something that indicates that the original Bible had been changed as mentioned in Qur’aan.
Allah (God) forbids you not, with regard to those who fight you not for (your) Faith nor drive you out of your homes, from dealing kindly and justly with them: for Allah (God) loveth those who are just.
New International Version
“Whoever sacrifices to any god other than the LORD must be destroyed.
New Living Translation
“Anyone who sacrifices to any god other than the LORD must be destroyed.
English Standard Version
“Whoever sacrifices to any god, other than the LORD alone, shall be devoted to destruction.
New American Standard Bible
“He who sacrifices to any god, other than to the LORD alone, shall be utterly destroyed.
King James Bible
He that sacrificeth unto any god, save unto the LORD only, he shall be utterly destroyed.
Holman Christian Standard Bible
Whoever sacrifices to any gods, except the LORD alone, is to be set apart for destruction.”
International Standard Version
“Anyone who sacrifices to a god, except the LORD alone, is to be utterly destroyed.