Lester Buchinsky, aka the Electrocutioner, is a minor villain of the Batman.
Initially working in the cause of justice just like the first Electrocutioner, Lester Buchinsky became a criminal and mercenary. Overly reliant on his ability to generate electricity, the Electrocuioner has faced (and been defeated by) Batman, Robin, and Nightwing. In at least one scheme, working with Cluemaster to steal an armored car full of money, Spoiler works to oppose him. Ironically, Spoiler would prove to be Cluemaster's daughter. The stupidity of Lester's second partner, a hulking brute with delusions of intelligence, would also hamper their plans. For a time, Lester was frequently seen in the employ of Bludhaven crime boss Blockbuster (Roland Desmond).
In Infinite Crisis, Lester became a member of the Secret Society of Super Villains.
During the 34th week of the series 52, Electrocutioner appears as part of a Suicide Squad operation against Black Adam].
In "Rise and Fall" storyline, Green Arrow is still hunting Electrocutioner those who worked with Prometheus, keeping secret his murder of the man as the rest of the JLA tries to track him down. Green Arrow confronts the Electrocutioner, who set off the device that devastated Star City in Justice League: Cry for Justice. He's close to killing the man when Black Canary stops him and in their argument, Canary realizes what Green Arrow did. Electrocutioner escaped from Green Arrow's rage to bring Electrocutioner down. Although Electrocutioner was defeated and horrifically injured by Speedy. Green Arrow's arrival convinces Speedy that killing is not the answer and the two archers took Electrocutioner into custody.
Once he awoke from his coma, Roy Harper vowed revenge. He broke into the jail and killed Electrocutioner, despite all of Green Arrow's protests.
Powers and Abilities
The Electrocutioner's costume possesses circuitry that allows him at will to either stun or kill his victims with a bolt of electricity.
In other media
The Electrocutioner was an arc villain in the first season of the TV Series Gotham. He was portrayed as an escaped Arkham inmate named Jack Gruber. The name Jack Gruber was later revealed to be an alias, with his true identity being Jack Buchinsky.
In the loosely-movie-based 1989 movie game for Nintendo, the Electrocutioner was the boss of stage 3. He had an electric sword-arm that was used to fling arcing high-voltage projectiles. Along with Killer Moth and Firebug, he was a super-villain working for the Joker.