Editor's note: this story takes place before War Crimes.
A traffic helicopter crashed into a bridge in Gotham City. A woman choked and died at a board meeting. A train engineer died, causing a derailment. All three turned out to have the same pacemaker - made by WayneTech.
Batman discovered their frequencies had been altered slightly to induce the heart attacks. Batman fingered Hush for the crime due to his medical background and his hatred for both of his identities. Hush denied doing it, and Batman believed him.
Joker played with two birds he'd gained companionship from when he was recuperating with the circus freaks. He'd been training them for some time.
Joker appeared in bed with a hooker, who'd picked up a surgeon as a john.