Assassination of John and Mary Grayson

The Assassination of John and Mary Grayson was an assassionation mission orchestrated by Tony Zucco and the Maroni crime family.

Background
The Maroni crime family uses hydrofluoric acids as their calling card to burn their victims to death. The crime family would attack Harvey Dent and then set their sight on the performers of Haly's Circus.

Assassination
In 2002, the crime family then instructed Tony Zucco to head to the circus to kill the performers. During a performance by The Flying Graysons, tragedy struck as the rope snapped, killing both John and Mary Grayson.

Aftermath
Following the tragedy, Dick Grayson was adopted by billionaire playboy Bruce Wayne and eventually would become the masked vigilante, Robin. Haly's Circus had shut down due to the tragedy. Some years later, Zucco snitched on the Maroni crime family, arrested on charges of racketeering and tax evasion.

Appearances

 * Titans
 * Season One
 * Titans (memory)
 * Hawk and Dove (video)
 * Origins (flashback)
 * Jason Todd (flashback)