-- When Dan Werb began to study these murders in 2013, rather than viewing them in isolation, he discovered that they could only be understood as one symptom among many. Environmental toxins, drug overdoses, HIV transmission: all were killing women at overwhelming rates. As an epidemiologist, trained to track epidemics by mining data, Werb sensed the presence of a deeper contagion targeting Tijuana's women. Not a virus, but some awful wrong buried in the city's social order, cutting down its most vulnerable inhabitants from multiple directions. Werb's search for the ultimate causes of Tijuana's femicide casts new light on immigration, human trafficking, addiction, and the true cost of American empire-building. It leads Werb all the way from factory slums to drug dens to the corridors of police corruption, as he follows a thread that ultimately leads to a surprising turn back over the border, looking northward. 'City of Omens ' -- GABOR MATÉ, MD 'City of OmensALFREDO CORCHADO, author of Homelands and Midnight in Mexico