Green Lantern (Earth-D)

"Green Lantern" was a vigilante in Earth-D, he died during the Crisis of 2019 when his earth was destroyed by antimatter.

Biography
In 2019, when Outkast released some Shadow demons, Green Lantern fought them with the help from heroes from other Earths. But despite his effort, the Earth was wiped out by a wave of antimatter.

Powers

 * Powers via energetic ring: All of Green Lantern's powers come from his energetic ring.
 * Energy manipulation: Courtney is able to project green energy out of his ring.
 * Flight: Green Lantern is able to levitate and fly at unknown speeds and altitudes with the use of his ring.

Equipment

 * Ring: Green Lantern has a ring that project a green energy, though it is unknown whether the energy is magical or technological in nature.
 * Green Lantern suit: : He had a suit that he used when fighting crime as Green Lantern.