Equality of sin

I recently read an article discussing capital punishment and if it still applies today. The article shows how Genesis 9:6, which reads “Whoever sheds human blood, by humans shall their blood be shed; for in the image of God has God made mankind," has abiding authority even today. The author claims that this command by God demonstrates the sacredness of human life. My question is the following: does this mean that God does, in fact, view some sins as worse than others?

All sin is worthy of God’s condemnation (Romans 6:23; Galatians 3:10).  The Bible makes it clear that sinful thoughts are violations of God’s holy law as are sinful actions (Matthew 5:28; 1 John 3:15).  God’s allowance for harsh punishment of those who break the fifth commandment by murder—even today (Romans 13:4)—illustrates his will that people not end others’ time of grace.  God alone will do that:  directly or indirectly through the government.  God desires that all “be saved and come to knowledge of the truth” (1 Timothy 2:4).