M-13 arrests

This is an addendum to the earlier post about M-13, the gang made up mostly of illegal Central American immigrants. This article gives a little background of the gang and information about the nationwide crackdown that resulted in over 100 arrests. The article mentions that one of the leaders of the gang was nicknamed El Culiche, which the article translates as "Tapeworm." I suppose I have to trust the article, but seriously, what kind of gang leader names himself after an intestinal parasite?