JFK SHAGS A SAD SLIM LASS (solution)
by C. Scott Ananian, Andrew Lin, and Philip Newman
This puzzle is completely contained in its title.
When you type the title on a keyboard, you ought to notice that almost all the letters are on the home row.
If you connect the letters typed with lines on a picture of a qwerty keyboard (ignoring spaces), you will draw an arrow:
I A S D F G H J K L M
The arrow points to one particular key. Since the title was in all caps, you should hold down shift while pressing this key, producing a COLON.