Boss Zucco is synonymous with the Boy Wonder. To summarize: Anthony Zucco was a mob boss attempting to extort money from Haley's Circus, and when the owner of the circus rejects the threat, Zucco sabotages the robes used by the acrobatic act known as the Flying Graysons. While John and Mary Grayson fell to their deaths, their young son Richard looked on in horror. Adopted by Batman, the lad was trained as Robin, Boy Wonder.
On Earth-One Zucco was sentenced to life imprisonment, on Earth-Two he was sentenced to the electric chair. However, it never quite seemed to develop that way and instead was also sentenced to life like his counterpart. As he was considerably older on Earth-Two, we ended up seeing what ultimately happened to the hood as he was a mindless vegetable in a prison hospital. His life was in danger when a now much older Robin sought revenge, mind you he was uninhibited thanks to the effects of the Stream of Ruthlessness, and Zucco's life such as it was had been saved by the Huntress.