Unfortunately for Aparo fans like me, Jim was the artist on that feature.
DC did later find a home for that story, which had been completed before the Implosion. It was published in Adventure Comics #454, a "Dollar Comic" with a larger page count than the standard comic book of the time, and featuring several different stories in an anthology format. Adventure had already been running a Deadman series by Aparo and writer Len Wein, but those stories were shorter than the Showcase spotlight had been scheduled to run. So when this tale found a slot for later publication, revisions were made from the originally-prepared story: the page length was shortened by a total of two pages. Today we present (from, I am sorry to say, less-than-high-quality scans) the unseen panels from the uncut version, as taken from DC's highly-limited release, the legendary Cancelled Comics Cavalcade.
The published version included the first two panels of this, page 4 of the story. It did not include the bottom four panels, where Deadman spots the "stupid kid" on the ledge.
The published version deleted page 5, seen above, entirely.
The published version deleted the first two panels, and joined the rest to the portion of page 4 that had been retained. That worked out quite neatly, removing Deadman's rescue of the boy (and, perhaps unfortunately, the demonstration of his supernatural abilities and acrobatic skills), and the absence of the sequence was indetectible. But I always wanted to see what was cut, and there it is.