If we were talking 1700s, my guess would be Alexander Hamilton, who placed no faith in the "unwashed masses." Then I thought of Brigham Young, whose Mormon movement was subject to scorn by the American mobocracy (or so he claimed); but that didn't fit the assassination topic either. I'm stumped.
I'll try again. Let's try the category, Circumstances Invoving John Surratt That led to this Comment From Another Person, for $10.
Who is Richard Merrick? (the defense attorney for Surratt)
So when is this "Old Enough To Know Better" supposed to kick in?
Excellent, Dave! My next clue was going to be the answer is on the Internet.
The quote in context:
"I am curious to know what offense will be set up by the Government in Surratt's case. I am very much afraid the trial will meet with another postponement so that they can urge a longer continuance of my exile on this account. Our country seems a complete mobocracy instead of a Government of law and order.
The President does not feel warranted in the execution of his plainest duties under the Constitution without first consulting the mob spirit."