Caro Quintero walked free Friday after a federal court overturned his 40-year sentence in agent Enrique “Kiki” Camarena’s kidnapping, torture and murder. The three-judge appeals court in the western state of Jalisco ordered Caro Quintero’s immediate release on procedural grounds after 28 years behind bars, saying he should have originally been prosecuted in state instead of federal court. Also imprisoned in the Camarena case are Ernesto Fonseca Carrillo and Miguel Angel Felix Gallardo, two of the founding fathers of modern Mexican drug trafficking, whose cartel based in the northwestern state of Sinaloa later split into some of Mexico’s largest drug organizations. Fonseca Carrillo’s attorney, Jose Luis Guizar, said his team had filed an appeal based on the same procedural grounds used by Caro Quintero, and expected him to be freed within 15 days by a different court in Jalisco. “The appeal is about to resolved. We believe that the judges will stick to the law,” Guizar said. “Fonseca Carrillo should already on the street. He should be at home. At its base, the issue is the same as Rafael’s. ” He said he had not spoken to Felix Gallardo’s attorneys about their expectations for that case. Mexican officials did not respond to calls seeking comment Saturday. Camarena’s murder escalated tensions between Mexico and the U.S. to perhaps their highest level in recent decades, with the Reagan administration nearly closing the border to exert pressure on a government with deep ties to the drug lords whose cartel operated with near impunity throughout Mexico. The U.S. Department of Justice said Friday that it found the Mexican court’s decision to free Caro Quintero “deeply troubling,” but former DEA agents said they were pessimistic that the Obama administration would bring similar pressure to bear. “We are extremely disappointed,” James Capra, chief of operations for the DEA, told CBS News correspondent Sharyl Attkisson about Caro Quintero, “and more than that, we are angry. We are mad. This is personal. Never did we think this was gonna happen.” Nearly 20 years after the enactment of the North American Free Trade Agreement, U.S.-Mexico trade exceeds $1 billion a day. The two countries have worked closely against drug cartels over the last seven years, with the U.S. sending billions in equipment and training in exchange for wide access to Mexican law-enforcement agencies and intelligence. The U.S. said little last year after Mexican federal police opened fire on a U.S. embassy vehicle, wounding two CIA officers in one of the most serious attacks on U.S. personnel since the Camarena slaying. Twelve police officers were detained in the case but there is no public evidence that the U.S. or Mexico pursued suspicions that the shooting was a deliberate attack by corrupt police working on behalf of organized crime. “I’m sure there’s going to be a lot of complaints about it but do we have a Department of Justice that’s going to stand up for this right now? I don’t think so,” said Edward Heath, who ran the DEA’s Mexico office during the Camarena killing. “Everybody’s happy, businesswise. Trade is fine, everybody is content.”