Mexican AG's criticized investigative chief resigns

MEXICO CITY (AP) — The head of the criminal investigation agency for the Attorney General's Office, whose dismissal had been demanded by the families of 43 college students who disappeared two years ago, resigned Wednesday.

The government's investigation into the students' disappearance has been criticized within Mexico and by international experts for focusing on an early theory that the students' bodies were incinerated at a dump site rather than on investigating other leads.

The Attorney General's Office, which oversees the investigative agency led by Zeron, said in a statement at the time that it had opened an investigation through its internal affairs unit.

Experts sent by the Inter-American Commission on Human Rights had criticized Zeron for not clearly documenting how burned bone fragments — the only physical evidence of the students — were found in a river near the dump where the government says they were disposed of after the fire.