Barry Allen (Earth-1: Post-Crisis)

Bartholomew Henry "Barry" Allen is the vigilante known as The Flash from Central City.

Early life
Barry was born on September 30, 1992, in Central City, in Ohio, to Henry and Nora Allen. When Barry was 9 years old, his mother was murdered and his father was arrested for her murder despite Barry's protest.

Getting powers
One night, Barry was struck by lightning which gave him super speed becoming a Meta-Human.

Monitored by Lex Luthor
At some point, Barry witnessed an armed robbery and used his speed to stop the criminal. Unbeknownst to him, Lex Luthor caught him on camera and kept him in his files with other Meta-Humans.

Stopping Captain Boomerang
When Captain Boomerang tried to rob the Central City Diamond Exchange, Barry disguised with a red suit appeared and stopped him.