( CNN ) -- Eduardo Arellano-Felix , the last of four brothers who ran the drug cartel in Mexico known as the Arellano-Felix Organization , was sentenced Monday to 15 years in U.S. federal prison for his role as chief financial officer , the U.S. Department of Justice announced . CNN Photos : Ex-addicts find solace as caregivers . Arellano-Felix , 56 , was sentenced after pleading guilty in May to charges of conspiracy to launder money and to use and invest illicit drug profits . A medical doctor known as `` El Doctor , '' Arellano-Felix used drug-trafficking proceeds to pay members of the drug cartel to commit crimes , buy firearms , pay bribes and purchase drugs , according to the plea agreement . Read more : Mexico shifts drug war strategy . Although Arellano-Felix was not directly involved with kidnapping and killings , he was `` still an integral part '' and `` fully aware of the methods '' of the cartel , U.S. District Judge Larry A. Burns said . Arellano-Felix `` advised his brothers as they orchestrated the importation of hundreds of tons of cocaine and marijuana into the United States , ordered the kidnap and murder of numerous people , and directed the widespread corruption of law enforcement and military personnel in Mexico , '' according to a sentencing memorandum . Opinion : Horror wo n't end with cartel leader 's arrest . In addition to the 15-year prison sentence , Arellano-Felix will forfeit $ 50 million , the department news release said . Two of Arellano-Felix 's brothers , Benjamin and Francisco Javier , are in U.S. prisons for racketeering , drug trafficking and money laundering . Ramon Arellano-Felix , whom the Justice Department described as the cartel 's enforcer , was killed in a shootout with police in 2002 , the statement said . Eduardo Arellano-Felix was arrested on October 25 , 2008 , after a gun battle with Mexican forces . Arellano-Felix was ordered extradited to the United States in 2010 but spent nearly two years on unsuccessful appeals of his case . CNN 's Carol Cratty contributed to this report .
Eduardo Arellano-Felix is sentenced for money laundering and illicit drug profits . He is one of four brothers who ran the Arellano-Felix drug cartel in Mexico . Two of his brothers are in U.S. prisons ; the third was killed in a 2002 shootout with police .