Easton resident and Greiser's friend Dan Slater is a former reporter for The Wall Street Journal who has also written for The New York Times, The New Yorker, The Washington Post, The Boston Globe, New York magazine, The Atlantic, GQ, and Fast Company. 

His 2016 book Wolf Boys is the true tale of two American teenagers recruited as killers for a Mexican cartel, and the Mexican American detective who realizes the War on Drugs is unstoppable. The New York Times called it “A hell of a story…undeniably gripping," and the Chicago Public Library called it one of the best books of 2016.

In this astonishing story, Slater recounts the unforgettable odyssey of Gabriel Cardona. At first glance, Gabriel is the poster-boy American teenager: athletic, bright, handsome, and charismatic. But the ghettos of Laredo, Texas—his border town—are full of smugglers and gangsters and patrolled by one of the largest law-enforcement complexes in the world. It isn’t long before Gabriel abandons his promising future for the allure of juvenile crime, which leads him across the river to Mexico’s most dangerous drug cartel: Los Zetas.