what does the Quran say about killing...?

The same as the Old Testament of the Holy Bible. God commands Christians to kill: non-Christians, disobedient children, unfaithful wives, people who work on the Sabbath, and many many others.

Killing an innocent person is like killing the whole humanity.

what i know is limited when it comes to the koran. men with masks that cover their identity are not true "muslim".

a true muslim cannot kill a persons slave, nor can they kill a true nazarene.

but of the infidels, they are commanded to kill...

there are devil worshiper in control of the Western Governments, they do deserve to die. They will be destroyed by God in the christian prophecy. this land was consecrated to serve God, all that will not repent are doomed to die and swept off this land. all things and all people that offend God will become like ashes and stubble and according to Zacharia, they will be ashes under the feet of the righteous.

Muslims cannot eat pig at all, nor meat without the blood drawn out. Killing another person should only be in defense.