Police say Mario Cardenas Guillen is a leader of the drug cartel . He was killed in a military operation Monday . He is wanted in connection with a number of drug trafficking cases , officials say . It has been part of the solution , '' he said . His father , Osiel Cardenas Guillen , was the cartel 's founder and former leader .
Police say Mario Cardenas Guillen is a leader of the drug cartel . He was killed in a military operation Monday . He is wanted in connection with a number of drug trafficking cases , officials say . His father , Osiel Cardenas Guillen , was the cartel 's founder and former leader .