Prosecutors have unearthed what appear to be fat, skin and bones at properties in the border city of Tijuana once used by a man known as the "stew-maker," who confessed to dissolving the bodies of drug cartel victims.
Authorities have confirmed the finds but say it is unclear if the fragmentary remains are human. The remains have been sent to Mexico City for testing.
But anti-crime activist Fernando Ocegueda says there is reason to believe the remains belong to victims of cartel body-handler Santiago Meza Lopez.
Meza Lopez was arrested in 2009 and confessed to dissolving at least 300 bodies in caustic soda.
A similar caustic substance is used to prepare hominy for the Mexican stew known as pozole.