by: CNN

Mexico City (CNN) -- A presumed member of the Jalisco Nueva Generacion cartel has been arrested in Veracruz, Mexico, carrying identification cards belonging to a newspaper administrator who was killed in May, the Mexican military said Monday.

The arrest of Juan Carlos Hernandez Pulido, also known as La Bertha, occurred as a result of a tip from an informant who told authorities someone in a car appeared to be sharing drugs, the navy said in a statement.