This incident is an example of what John Bingham, the main author of Section 1 of the 14th Amendment, had tried to prevent the states from doing with the equal protections clause of that amendment imo.
In this example, state actors are wrongly basing the punishment for a crime on the race of the people who do the crime.
It can also be argued that state actors are wrongly effectively establishing a privileged / protected class which the states have amended the Constitution to expressly prohibit both themselves and the feds from doing as evidenced by Clause 8 of Section 9 of Article I and Clause 1 of Section 10 also of Article I.
Article I, Section 9, Clause 8: No Title of Nobility shall be granted by the United States [emphasis added]: And no Person holding any Office of Profit or Trust under them, shall, without the Consent of the Congress, accept of any present, Emolument, Office, or Title, of any kind whatever, from any King, Prince, or foreign State.
Article I, Section 10, Clause 1: No State shall enter into any Treaty, Alliance, or Confederation; grant Letters of Marque and Reprisal; coin Money; emit Bills of Credit; make any Thing but gold and silver Coin a Tender in Payment of Debts; pass any Bill of Attainder, ex post facto Law, or Law impairing the Obligation of Contracts, or grant any Title of Nobility [emphases added].