Bullseye

Caught in the crossfire of a deadly standoff, Detective Michael Bennett must kill...or be killed.
Tensions between America and Russia are the highest they've been since the Cold War. As the countries' Presidents travel to the United Nations to iron out their differences, a fashionable husband and wife team of lethal assassins prowls the streets of Manhattan hunting their prey a professor hiding a scandalous secret. Their next target: the extremely popular President of the United States of America.
Pulled away from his family and pressed into service, Detective Michael Bennett must trace the source of a threat that could rip the country apart and what he finds may turn the Cold War red hot once again. With allegiances constantly in doubt and no one above suspicion, only Bennett can step into the line of fire to save the President before the deadly kill shot hits its mark.
"There were snowdrifts at the curbs and snow-buried benches in the parks and snowcaps on the street signs and fire hydrants and on the newel posts for the subway entrances. There were four inches so far, and they were thinking maybe ten when all was said and done. Four inches was laughable somewhere like Maine, but in Manhattan on a dark early November evening, it cancels plans and sends people indoors. The two black-clad figures on the BMW R 1200 RT sport motorcycle that rolled slowly north up Amsterdam Avenue near 135th Street not only knew that; they had planned on it. They’d been waiting on the cold snowy conditions for the last month."