Forensic examiners in Mexico have pieced together 29 bodies that were stuffed in plastic bags and dumped in a well earlier this month.
Investigators announced that they have identified 13 complete and 16 incomplete bodies.
Authorities said two of the victims were women, and that at least four had criminal records, without specifying their crimes.
Officials are continuing to conduct tests after the body parts were discovered near the city of Guadalajara in early September.
It's still unclear if the mass grave is related to cartel violence.

Trump condemns, won't apologise for video with racist clip on Obamas
Search for Nancy Guthrie, missing 6 days from Arizona home, turns to new message
WHO says one person dead from Nipah virus in Bangladesh
Explosion at mosque in Pakistan's capital kills 31
Hong Kong media tycoon Jimmy Lai to be sentenced on February 9
More storms coming as Leonardo swells rivers in Spain and Portugal
Danone recalls more infant formula in Europe
UN chief calls New START treaty expiration 'grave moment'
