Road Kill by Don Massenzio

Road Kill is a thriller that starts with an average day for government intelligence analyst who sits in the wrong seat on his early morning flight. When the passenger who sits in our hero's intended seat ends up dead by poisoning, the story quickly accelerates to a cat and mouse game. The main character is being framed for possessing intelligence that he did not gather. He must go on the run in an attempt to clear his name and stay alive.