CHARLOTTE, N.C., March 6 -- The U.S. Department of Homeland Security's U.S. Immigration and Customs Enforcement issued the following press release:

SAN DIEGO - A superseding indictment was partially unsealed in the Southern District of California March 5 charging alleged drug trafficker Benjamin Madrigal-Birrueta, 22, with murdering two people to prevent them from testifying in drug trafficking cases in federal court in San Diego. Homeland Security Investigations (HSI), the Drug Enforcement Administration, the FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives are investigating this case with local law enforcement agencies.

The victims were identified as Cesar Armando Murillo, 44, and Maria Sofia Hernandez, 33, of Yakima, Was...