When no one was hurt and the plaintiffs have removed their complaint, leave it the heck alone
Then it is upon Mr. Schwartz and his defense to prove that no one was hurt.
dhenry, your second sentence should tell a whole lot of people how you think. Coffin v. United States way back in the late 19th century set the stage in the U.S. and it has been reinforced thousands of times. It's even explicitly stated in many country's constitutions.
I am not really sure how Coffin vs. US is connected to your notion that the plaintiffs' dropping the complaints proved one's innocence.