Jefferson Jackson

Jefferson "Jax" Jackson is a mechanic and one half of Firestorm alongside Martin Stein.

Early life
As a senior in high school, Jax Jackson was a promising quarterback. In December 2013, Jax lead his school to a victory while scouts from college's watched on. He was told by his coach he was talented enough to go where he wished. Shortly after, the S.T.A.R. Labs particle accelerator blew up and Jax aided his team mate to safety. Before he could close the doors, he was struck by the dark matter and crashed too the wall, leaving him unconscious.

Jax woke in the hospital and quickly learned he could never play football again. As football was his only way to get into college, he was forced to pick up being a mechanic for a living.

Becoming Firestorm
Jax was approached by Barry Allen and Martin Stein in his work place. The two met him because his molecular structure made him one of two perfect matches for the unstable Martin. When he went to S.T.A.R. Labs to learn more about it and met Barry Allen's team, he refused to merge with Stein and become a superhero. He was berated by Caitlin Snow before he left. Caitlin later shows up at his shop and apologizes for her behavior, explaining that her missing husband, Ronnie Raymond, became a hero as Firestorm and saved the city from the singularity, inspiring Jax. They are attacked by Dr. Henry Hewitt (The other candidate to become the new Firestorm) and escape to S.T.A.R. Labs, where Jax agrees to merge with Stein to save him resulting in the two becoming the new Firestorm. When Henry is wreaking havoc on Jax's old football field, he teams up with the Flash to stop Hewitt and starts to get used to his new superhuman abilities. Afterwards, he and Stein go to Pittsburgh to train on Firestorm's abilities similar to Ronnie.

Powers

 * Firestorm Matrix: When Jax merges with Professor Martin Stein, the two create the nuclear-powered composite being Firestorm.
 * Psychic link: Jefferson can hear Martin Stein's disembodied voice while the two of them are merged into Firestorm. Even when they are separated, their link allows them limited communication of sensations or emotions.
 * Pyrokinesis: Due to the nuclear nature of the transmutation of the two bodies, Firestorm is able to produce nuclear energy in the form of fire from parts of his body.
 * Flight: Firestorm can propel himself in the air via his flames and fly at great speeds.

Abilities

 * Skilled athlete: Jefferson is gifted with great natural talent in athletics. During his time in high school, he was a star quarterback who earned a full scholarship to any college/university of his choosing. However, after the particle accelerator explosion, his leg was too damaged to ever play football again, costing him his scholarship.