Scarecrow

Bio
Jonathan Crane is obsessed with fear. Due to this obsession, he using his chemistry skills to create a fear toxin. It is a powerful hallucinogen that triggers the fear center causing victims to see their greatest fears. In high doses it can be lethal.

History
Having worked himself to exhaustion, and suffering from dehydration and hunger, Crane fell asleep in the sewers. He was there looking for Julia because he had heard of an intriguing creature living in the sewers. Instead of finding her, she found him and dragged him out of the sewers.