security agents stand guard as a vehicle carrying damaso lopez nicknamed el licenciado arrives at the attorney generals office for organized crime in mexico city tuesday may 2 2017 mexican prosecutors said they captured lopez one of the sinaloa cartel leaders who launched a struggle for control of the gang following the re arrest of joaquin el chapo guzman lopez was long considered guzmans right hand man and helped him escape from a mexican prison in 2001 ap photo rebecca blackwell 2mtxpyb.jpg from lópez eli View Photo