Desperate to find sons, parents of 43 missing students in Mexico appeal to drug boss for help

Families of 43 college students missing in southern Mexico since September say desperation and a lack of confidence in the government has driven them to appeal to the leader of a drug gang for help in locating their sons.

After months of investigation, Mexican officials concluded a different drug gang murdered and incinerated the young men. But six months after the disappearance, and with only one of the missing identified through a bone fragment, parents are asking the leader of a rival gang to share what he knows.

A sign hung near the city where the students disappeared asks the purported leader of Los Rojos gang to "help us find our sons."

The father of a missing student says the families have not had a response as of Wednesday afternoon.