I think I kind of left the word balloons in the second panel here in the wrong positions to be read in the order I wanted.  Fortunately, the top two balloons can be read in either order with little change to the rhythm and no loss of signal.

I’m imagining some kind of crime with a fifty year statute of limitations, but I have no idea whether any crime does.  Even rape in most states is not more than 25 years, I think.  (There was a recent story about an ex-governor who had an affair with his 14-year-old baby sitter in the 1970s and it said the statutes had expired.)  And murder, as all detective fiction eventually gets around to mentioning, has no statue of limitations.  Oh well, being left to ponder is all part of the gag, even for the guy who wrote it.