Looks like the story on the D.C. Madam has, finally, come to a close. The police in Tarpon Springs, Fla. are officially ending their investigation into Deborah Palfrey’s death, confirming it was indeed suicide. Palfrey hanged herself back in May, after being convicted in April for money laundering, racketeering, and using the mail for illegal purposes. The charges were in connection with her California call girl firm, Pamela Martin & Associates, which may have employed…