Did red flags ever pop up that maybe there was some evidence that was being hidden?

Well, certainly.

Certainly.

You smelled a rat.

Yes.

Secrets, lies, corruption.

The biggest part of this problem is the abuse of power.

They've destroyed lives.

It shocks the conscience.

Inside the scandal that shook the city of Philadelphia, a stunning pattern of

misconduct exposed in a 31-year-old case. Little girl's body was found in this TV body. Killer is

still at large tonight. This is a little girl taken off her neighborhood block. The haunting mystery

of Barbara Jean Horn.

There is no justice.

We need to find out who did this.

Did you feel like you were lifting the lid on something much bigger?

Yeah, it was even worse than I thought it was what they were hiding and what they knew.

I'm Lester Holt, and this is Dateline.

Here's the investigation.

When Sharon Fahey was 21 years old, she lived in Northeast Philadelphia and worked at a department store.

But her greatest dream was to have a daughter.

I only had a girl's name picked out.

...