yw.
i've tried to google what ST says about the card in his book... but cannot find the quote. can you post what exactly he said? maybe then we can try to figure out an answer to your question...
Detectives going through the house noted cobwebs in the tracks of various windows and found some windows painted closed. Dust and debris had gathered on other sills, giving no indication of forced entry. Some curious pry marks were found on a back door, but more and more, except for the broken window in the basement, it looked as though the big house had been locked up tight the night before.
A New International Version Study Bible was photographed on the desk of John Ramsey, open to the pages of Psalms 35 and 36. There was no way to know it at the time, but those verses were to play a critical role in the unfolding case. Beside the Bible was a greeting card JonBenét had made for her father, on which she had printed, The best gift I can give is me.
While the house search went on, other cops fanned out to canvass the neighborhood and conduct more interviews. A resident directly to the south reported that the light was off in the southeast corner sunroom of the Ramsey home and thought that odd because it was the only time she was aware in the past few years that it did not burn all night. A neighbor to the north would say that the butler kitchen lights were on around midnight and considered that unusual since it was the first time he had noticed that light being on in the Ramsey home. A third neighbor, to the west, said that her dogs, who barked at anyone walking in the alley, just as they did when the police officer came to question her, made no noise Wednesday night. It was impossible to make a 100 percent sweep because some people were away on holiday vacations, other houses had caretakers, and some just stood empty.
JonBenet: Inside the Ramsey Murder Investigation, Steve Thomas, pages 48 - 49