step. >> all right, michelle sigona, please keep us posteposted. >> you got it. one of mexico's most-want e fugitives is in police custody today. the founding member of the zetas drug gang was caught in mexico city in a suburb of that city without a single shot fired. among several charges, authorities say aguilera was involved in the shooting death of a u.s. customs agent. the arrest follows a travel warning over the holiday weekend urging americans not to travel to mexico. he was allegedly planning to rob and extort u.s. citizens there. we're joined by laura carlson with america's program for the center of international policy. thank you so much for joining us. >> thank you, jeff. >> the zetas are blamed for much of 35,000 cartel-related deaths around the country since 2006. how damaging is this arrest to zetas cartel?