Complex sentence: Matta was indicted for operating several major cocaine smuggling rings in United States in the early 1980s, and was one of the narcotics traffickers accused of the kidnap and assassination of American DEA agent Enrique Camarena in Mexico in 1985.
Split into simpler sentences: Matta was indicted for operating several major cocaine smuggling rings in United States in the early 1980s. He was also one of the narcotics traffickers accused of the kidnap and assassination of American DEA agent Enrique Camarena in 1985.