“What about that ransom note, folks?”
Someone in John Ramsey’s office must have been connected to have requested the EXACT amount of John Ramsey’s Christmas bonus in the ransom note or someone Ramsey told how much the Christmas bonus was ...and if memory serves, he had just received the bonus that day or the day before or very recently???
The killer would have had to call John's office and asked. I'm sure the staff was quizzed if they told a stranger who called what John's bonus was.