Here's the Pope's quote about Muhammad:

14th century Byzantine Emperor: "Show me just what Muhammad brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached."

Every person killed or maimed by a Muslim in the name of Muhammad supports this statement. You cannot claim to be peaceful and non-evil while blowing someone up, shooting them in the back, and other evil deeds.