Steeljacket was a Metahuman foe of the Batman.

Biography Edit

After experiments made his bone marrow nonexistent and hollow, Steeljacket was driven insane by his new doglike condition. Drivien to villainy, Steeljacket came across the Batman. Easily defeated, Steeljacket took the insanity plea and was submitted to Arkham Asylum for rehabilitation. There he became one of the favoured patients of Jeremiah Arkham.

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