I have a missing daughter.

She was last seen around 3pm.

I don't know.

I just know that I did not care.

I've got Weinberger, investigative journalist and former deputy sheriff.

I'm Anna Sige-Nikolazi, former New York City homicide prosecutor and host of investigation

discoveries to conviction.

We have covered many horrible crimes, but obviously there is something particularly difficult

about cases that involve very young children, and this is no exception.

In today's episode, we're revisiting the heartbreaking case of eight-year-old Sandra

Cantu, who went missing from her home in Tracy, California in 2009.

The search for Sandra captivated the American public and the news of her case and the bizarre

circumstances behind its tragic ending would be part of the national headlines for weeks.

The city of Tracy lies between San Francisco and Sacramento.

Most of the city is a commuter town during the day, probably 60% of the adults that live

in our city commute to the Bay Area, so we don't have a big daytime population.

That's the voice of Lieutenant Tim Bauer, who was an investigator on this case, a case

that would test the skills as a detective and challenge the common wisdom of even the

most veteran investigators.

We're smack dab in the middle of Sacramento and San Francisco, we're one hour and either

way.

One of the things they fortunately don't have is a lot of murder.

...