Twentieth Terrorist

New York State Police Senior Investigator Tom Weston almost lost his brother to a terrorist. Jack discovered a trove of gold coins inside a cave beneath Valcour Island. Although one man ended up dead, Jack survived to testify as a surprise witness in court against a murderer named Bashoul, but before being taken to jail on September 10, Bashoul makes a terrifying claim.
"Weston, you may gloat in victory tonight, but your victory will be short-lived. Tomorrow, Allah shall inflict his wrath upon you infidel dogs and bring America to its knees." He's right. New York's famed Two Towers fall the following day, the target of Osama Bin The Twentieth Terrorist Laden's war on America and the work of nineteen Al Qaeda terrorists. However, one man gets away.
Bin Laden isn't in America at the time of the attacks; instead, he has an associate near the towers who directs and supports the nineteen young jihadists. This twentieth terrorist is highly intelligent, capable of creating chaos that overwhelms law enforcement while escaping arrest. Although Tom is happy his brother is safe, September 11 changes everything, and he won't sit quietly and watch his city burn. He's out to stop a terrorist.