Alex Cane was an arms dealer who affiliated with The Penguin. He was also a murder victim.
Alex Cane was one of the Penguin's Henchmen, who acted as an arms dealer between the Penguin and associates. He had a list of prior crimes, including assault and carrying concealed weapons.
On Christmas Eve, Cane, alongside another member of Penguin's Gang, a Martial Artist and top hitman named Qing Lu, were waiting for what was presumably an arms deal to occur at Coventry. Unfortunately, Cane ended up betrayed and shot through the heart by Lu, who wanted to advance up the ranks quickly. Cane, in return, used a Molotov Cocktail in an attempt to ensure that Lu died with him, but Lu escaped by jumping up a wall and a ladder, and left his DNA behind. Batman learned of the fire at Coventry as well as the murder, and deduced what had happened, although he initially guessed that Penguin had hired Lu to take Cane out. He eventually tracked Lu down to the Final Offer at Amusement Mile, and proceeded to knock Lu and Penguin's men out.