Blue Jersey has a list of reaction from across the country and the world. The Colosseum in Rome will be lit in honor of our abolition of the death penalty:
Death penalty opponents hailed the new law as a historic victory against capital punishment. Officials in Rome planned to light the Colosseum in support. Once the arena for deadly gladiator combat and executions, the Colosseum has become a symbol of the fight against the death penalty.
Although the death penalty hasn't been used in the state since its reinstatement, it's good to know that it never will.
UPDATE: The Colosseum, bathed in light.