Carl Tanner (Earth-90: Pre-Crisis)

"They don't understand how important my work is! If they catch me, it's all for nothing!"

- Carl Tanner to Tina McGee

Carl Tanner was a scientist that developed a mutation formula after using some homeless as test subject.

Early Life
At some point Carl was born from homeless parents, he has faked his wealth to avoid shame from others by telling everyone that he lived in a big house and had a childhood privilege. During his youth, he has befriended Tina McGee and David. Despite the fact that he felt in love with Tina, David ended up becoming her husband.

In 1988 he met Tina again during a convention in New York.

The homeless disappearance
In 1990, moved to Central City for a year to study at the University on animal mutation. For weeks, he has been experimenting on homeless people and made their body vanish once they die. One day, he was doing a lecture about animal mutation and exposed to everyone that his research could put an end to aging process and event more other possibility for human mutation. After the lecture, he met Tina again that introduced him to CSI Barry Allen and both argued about Carl's moral research. He decided to bring Tina back to her place after generously giving money to a homeless. At her place, he revealed that he still has feeling for her and kissed her which frightened her as she doesn't want to disrespect her late husband. The next night, he experimented on the same homeless as before but when he died, the Flash showed up and Carl was unable to recover the body this time. The next day, he went on a date with Tina at her house and Carl tried to retrieve information about a way to stabilize the mutation formula that David figured out. Tina told him that the paper was at her office but she won't show it to him because he doesn't want him to die. He then put some sleeping pills in her wine in order to copy her eyes for S.T.A.R. Labs retinal scanner. Later, he broke into S.T.A.R. Labs in order to photocopy David's paper but by doing so, he alerted a security guard. After knocking him out, he placed him into a glass cage and waited for the flash to show up to lock them up before escaping. Later, at his lab, he experimented on a dog and watched the mutation process that didn't kill the dog but instead made him angry and bigger to the point he could escape his cage. After this success, Carl went back at the university to try his formula on a rabbit but was interrupted by the Flash. Carl managed to distracted him and locked himself in the closet in order to use the serum on himself. Mutated and angry, he knocked put the Flash and caused chaos in the city. After lifting a police car, he turned back into his human form. Due to the fact that the lab's university was compromised, he broke into S.T.A.R. Labs in order to ionize the formula and be able to transform again. After turning back into his mutated form, he tried to inject the serum inside Tina's body but the Flash showed up and Carl knocked him out easily. Outside, Car was causing rampage in the homeless alley but the flash came back and wrapped a chain-link fence around him which stopped him until the serum's effects wore off. He then told Tina to leave him alone defeated.

Powers
via the mutation serum
 * Strength: During the effect of the mutation serum, Carl strength was increased.
 * Durability: During the effect of the mutation serum, Carl durability was increased to the point that he could be hit by a car with no effect.

Wearkness
via the mutation serum
 * Time limitation: The serum effect is only temporary which means that once the effect wore off, he was vulnerable.
 * Anger: Carl anger is unleashed while under the effect of the serum which made him uncontrollable.

Abilities

 * Stealth: Carl is very good to infiltrate S.T.A.R. Labs.
 * Technology expert: Carl has knowledge to bypass S.T.A.R. Labs' retinal scanner.

Equipment

 * Mutation serum: Carl had a mutation serum in order to mutate himself.

Trivia

 * His female counterpart may be Carla Tannhauser given the huge similarity between their name and their profession.