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.

Putin attends scaled-back WW2 victory parade
Bahrain says it has arrested 41 people 'linked to Iran's IRGC'
Trump announces three-day ceasefire between Ukraine and Russia
Two suspected hantavirus cases found in Spain, remote Tristan da Cunha
Indonesia locates two Singaporeans missing after Mount Dukono eruption
US expects Iranian response to peace proposal on Friday as fighting flares
Trump releases previously classified UFO files
Hostages in German bank branch released but suspect at large
