We All Fall Down (Michael Kelly Series #4)

A light bulb falls in a subway tunnel, releasing a deadly pathogen.
 
Within hours, a homeless man, a cop, and then dozens more start to die.
 
Hospitals become morgues. El trains become rolling hearses.
 
Chicago is on the verge of chaos before the mayor finally acts, quarantining entire sections of the city. Meanwhile, private investigator and former cop Michael Kelly hunts for the people responsible. The search takes him into the tangled underworld of Chicago’s West Side …