The Blood Stained Coat

What did Joseph's coat of many colors typify? What did Isaac conclude when he saw Joseph's coat dipped in blood? How do we see a parallel between Joseph as a type of Christ who though he was thought to be dead yet he lived? Why do the self-righteous take offense at the revelation of Christ? Why did they hate their brother Joseph and how is that a picture of why Christ was and is hated? Did Joseph's brothers commit murder? Who was it that killed Christ?