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

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.

A grisly discovery of charred bones, shoes and clothing at a suspected drug cartel training ground has prompted demands for answers and justice from relatives of the more than 100,000 people missing in Mexico.

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