Bates, Andru and Esposito begin a particularly morbid 2-parter in World’s Finest 189 (Nov. 69), which opens with Superman falling to Earth, dead.
The abrupt beginning really helps add to the shocking nature of the story, right from the outset.
With Supergirl’s aid, an autopsy is performed on Superman, but certain organs get removed. Superman’s funeral is shown, attended by Batman and Robin, Batgirl. Most of the Justice League is there as well: Aquaman, Atom, Flash, Green Arrow, Green Lantern and Hawkman.
Luthor meets Motan the Ruthless, who tells him of how he killed Superman. Luthor gets the organs, and auctions them off.
Those who win the auctions for the eyes, ears, hands and lungs get them transplanted, and gain the appropriate powers. Luthor keeps Superman’s heart for himself.
The story concludes in the next issue.