They tried to rob a passenger bus bound to Mexico City when one of the passengers pulled out a gun and shot them to death
The bodies were found near the area known as La Marquesa, about 21 miles from Mexico City
The bodies in an advanced state of decomposition were found yesterday in San Juan de los Plátanos, about 10 miles west of Apatzingán.
The bodies were found in the town of San Juan de los Plátanos in the municipality of Apatzingán.
The head prosecutor of Jalisco state said that they apparently were members of a gang and came from nearby communities.
The bodies were found Sunday dumped outside a private medical clinic in the Pacific coast resort city of Mazatlán, Sinaloa.
Of the 117 bodies exhumed in Tetelcingo, Morelos, only about half had legible tags that could match them to their case files.
Peruvian mountain police official William Encinas said the bodies of one of the Mexican climbers and one of the Peruvians were found Thursday and searchers were still looking for the other two.
The exhumed bodies will be subjected to DNA testing in order to determine their identities.
The experts criticized prosecutors' decision to release a report last week saying there was a fire at the dump and the remains of at least 17 people were found there.