The investigation started with with a tip from ICE , authorities say . Investigators tracked the suspects to the southern state of Tlaxcala . They were arrested in Mexico City on Friday and charged Thursday morning at an immigration court in San Luis Potosi. Mexico , like many countries , struggles to prosecute and punish trafficking offenders .
The investigation started with with a tip from ICE , authorities say . Investigators tracked the suspects to the southern state of Tlaxcala . They each will serve a minimum of 16 1/2 years in prison . Mexico , like many countries , struggles to prosecute and punish trafficking offenders .