The Leopold/Loeb/Franks ransom note: 

Dear Sir:

As you no doubt know by this time, your son has been kidnapped. Allow us to assure you that he is at present well and safe. You need fear no physical harm for him, provided you live up carefully to the following instructions and to such others as you will receive by further communications. Should you, however, disobey any of our instructions, even slightly, his death will be the penalty.

1. For obvious reasons make absolutely no attempt to communicate with either police authorities or any private agency. Should you already have communicated with the police, allow them to continue their investigations but do not mention this letter.

2. Secure before noon today $10,000. This money must be composed entirely of old bills of the following denominations: $2000 in $20 bills, $8000 in $50 bills. The money must be old. Any attempt to include new or marked bills will render the entire venture futile.

3. The money should be placed in a large cigar box, securely closed and wrapped in white paper. The wrapping paper should be sealed at all openings with sealing wax.

4. Have the money with you, prepared as directed above, and remain at home after one o'clock. See that the telephone is not in use.

You will receive further communication instructing you as to your final course.
As a final word of warning, this is an extremely commercial proposition and we are prepared to put our threat into execution should we have reasonable grounds to believe that you have committed an infraction of the above instructions.

However, should you carefully follow out our instructions to the letter, we can assure you that your son will be safely returned to you within six hours of our receipt of the money.

Yours truly,
George Johnson