I like how the make and color of the car used by John Allen Muhammad and Lee Boyd Malvo yields a title with double entendre.
The definition of caprice from Merriam-Webster:
a: a sudden, impulsive, and seemingly unmotivated notion or action
b : a sudden usually unpredictable condition, change, or series of changes
I like the poster, too. There's a quiet energy -- peaceful and unsettling. The main characters are marginalized, almost out of frame. They seem dejected and look to be considering something of some weight. Storm clouds hover.
