The correct answer is Roger B. Taney.
In the famous Dred Scott vs. Sandford case, Justice Taney wrote the majority opinion for the court. In this famous opinion, Taney wrote how African Americans are not considered citizens, rather they are considered property. This meant that they had no legal right to sue white citizens. Along with this, the ruling in this case essentially allowed slavery to take place all over the US (even for the states who already abolished it). This was one of the most important and controversial court cases of the 19th century.