In 2003 a former Mexican official, Gonzalez Calderoni, was murdered in his car in McAllen, Texas by a gunman driving a car with Louisiana plates; he had been assisting the US in investigating the 1985 murder of DEA agent Kiki Camarena:
Gonzalez [Calderoni] was a lead officer of the Mexican attorney general’s office who was credited with bringing down the Pablo Acosta Villarreal drug cartel in 1988. Gonzalez was stationed in Juárez at the time.
Former El Paso FBI acting chief Matt Perez was in charge of the U.S. side of the 1988 operation, which ended with Acosta’s dying in a hail of gunfire during a raid led by Gonzalez on his ranch in Santa Elena, Mexico, south of the Texas Big Bend area.
“I talked to (Gonzalez) two months ago. ... He knew where all of Mexico’s skeletons were hidden,” said Phil Jordan, a former Drug Enforcement Administration official and former director of the El Paso Intelligence Center. “He was the only Mexican official who stood by us throughout the investigation into the 1985 murder of DEA agent Kiki Camarena.”