The BBC's Will Grant visits the site believed to have been used by drug cartels to dispose of victims' remains.

Authorities are trying to figure out how many were killed at a Jalisco ranch that apparently was used as a cartel training camp. Some call it the ‘Mexican Auschwitz.’

A civilian search group found a gruesome site near Guadalajara, sparking outrage as authorities had raided the area months earlier but did not uncover the graves.

Gruesome images from a ranch apparently used as a drug cartel training camp show hundreds of discarded items and skeletal remains.