On this Wikipedia page: http://en.wikipedia.org/wiki/Halal#Animals
Muslims
In Islam, killing a human being is not permissible without a legitimate cause. Especially killing a Muslim person, since this has been stressed and explicitly mentioned many times in both...
People often talk of major and minor sins, minor being those which may be forgiven due to good deeds and regular prayer, etc, while major are those that one must repent for with sincerity for forgiveness....