Hal Jordan's enemies: Tattooed Man
Former seaman Abel Tarrant embarked upon a career as a burglar and cracked the safe in a large chemical concern. However, in the process he set off the burglar alarm, bringing the armed watchman. Hastily trying to escape, Tarrant knocked over some chemicals, which ran together. In the ensuing gunfight, Tarrant noticed some of the spilled chemicals seemed to form the shape of a bomb. As he touched it, Tarrant wished that it was real - and suddenly it was! Yet he had to concentrate to explode it and open a breach in the wall through which he could escape.
The following day, Tarrant posed as a reporter and returned to the scene of his crime and used a sponge to take a sample of the mystery compound. He knew enough about chemistry to analyze it and to produce more of it. He found that to make things materialize, he had to draw exact outlines, then concentrate. This gave him complete control over the object in question.
Tarrant then decided that the easiest way to use his powers was to draw tattoos on his arms. Thus with the chemical symbols drawn on is body, he became the Tattooed Man, and began his costumed career by stealing the treasures of wealthy Baron Cranfield, who lived in Coast City.