Kirk Langstrom (Titans Tomorrow)

Dr. Kirk Langstrom was a zoologist and one of Batman's rogues, known as Man-Bat.

History
Before he was killed by Batman III, he was a rogue of Batman I, known as Man-Bat, who came up with a serum that gave him bat instincts.

Death
After Tim Drake succeeded Dick Grayson, Kirk was among the criminals killed by Batman III, and buried in Arkham Cemetary alongside other criminals, like Hush, Penguin, and Scarecrow.

Abilities

 * Genius Level Intellect
 * Zoology