Nemesio Rubén Oseguera Cervantes, known as "El Mencho," was the leader of the notorious Jalisco New Generation Cartel prior to his death on Sunday.

Why it matters: President Trump has for months pressed Mexican officials to target drug cartels and the U.S. had offered a reward of up to $15 million for information leading to the arrest of Oseguera Cervantes, known as "El Mencho," who led the Jalisco New Generation Cartel (CJNG) — a designated terrorist organization in the United States.

The Cartel leader “El Mencho” killing sparked widespread unrest across 20 of Mexico’s 32 states, with suspected cartel members torching buses and businesses, blocking highways, and clashing with security forces.

Drug cartel leader Nemesio Rubén Oseguera Cervantes, commonly known as El Mencho, was killed in a military operation on Feb. 22.

The fallout from Nemesio Oseguera Cervantes's death, the notorious leader of the Jalisco New Generation Cartel, has included a wave of violence that has swept over parts of the country, entrapping Americans vacationing in Mexico.

Mexican officials said 25 Mexican National Guard troops were killed in the ensuing violence triggered by the killing of cartel leader "El Mencho."

Jessica Himmer and other members of the Onalaska Hilltopper Rotary Club are sheltering in place in Puerto Vallarta, Mexico

El Mencho or Nemesio Rubén Oseguera Cervantes was killed by the Mexican military on Sunday, dealing a huge blow to Jalisco New Generation Cartel (CJNG). | World News