Simple Genius

Description for SIMPLE GENIUS by David Baldacci:

IN A WORLD OF SECRETS, HUMAN GENIUS IS POWER. AND SOMETIMES IT IS SIMPLY DEADLY...

Near Washington, D.C., there are two clandestine institutions: the world's most unusual laboratory and a secret CIA training camp. Drawn to these sites by a murder, ex-Secret Service agent Sean King encounters a dark world of mathematicians, codes, and spies. His search for answers soon leads him to more shocking violence - and an autistic girl with an extraordinary genius. Now, only by working with his embattled partner, Michelle Maxwell, can he catch a killer ... and solve a stunning mystery that threatens the entire nation.

This is #3 in Sean King and Michelle Maxwell Mystery.