Law enforcement officials estimate that tens of thousands of gangs are active across the United States, ranging from neighborhood street gangs to prison gangs and large organized criminal networks.

Barrio Azteca gang member Enrique Guajardo Lopez pleaded guilty in El Paso to his role in the 2010 Juarez fatal shooting of a U.S. Consulate employee.

Gangs tore through several rural communities last weekend, underscoring the challenges that will face the new, U.N.-backed Gang Suppression Force starting to enter the country. By André Paultre and ...

Even with so many gangs operating nationwide, a smaller group of organizations stands out for its reach, influence, and threat level. Using publicly available law enforcement reports and crime ...