His feeling turned out to be correct. While they had run down the man from the bank easily enough, Gibbs couldn’t get in contact with Ducky. They left the man with Tim and Gibbs and Tony split off to trace the others. Midway through their search they heard a gun fire and sped up, arriving at a cemetery to find Doctor Burns with a knife in her chest and Ziva standing over two men who were face down, hands behind their heads. Seems like Burns was the mastermind behind everything.