Up next a community reels after the senseless murder of a young woman.

It's very difficult to let a mom and a dad know that their daughter has been killed.

It was a horrendous tear in the fabric of our life.

The victim has no known enemies.

Her murder defies explanation.

There was really no context for it.

It was really a complete mystery.

Hundreds of suspects emerge, but for years there are no arrests.

Nothing about this case was another day at the office.

It was complex, it was challenging.

Ultimately, old-fashioned detective work and a little bit of art expose a killer hiding in

plain sight. Science was there, science was there from the beginning. Most residents of Agawa, Massachusetts will tell you it's an ideal place to raise a family.

The community has always been great, great schools, great activities for the kids.

A warm place, warm place with wonderful people.

The Ziegert family raised three girls and a boy in the town.

Their second child, Lisa, was determined to follow in her parents' footsteps

and once married, plan to raise a family

close to home. She could have changed her mind but she loved being close enough to be able

to pop in and say, hey mom can I borrow your shoes?

You know, or something like that or can I do some wash?

You know, it's, I think she loved the closeness

yet the independence. Lisa had a degree in education and was working as a teacher's aid.

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