For 18 years, a mass murderer successfully eluded the FBI.

He was wanted for the murder of his entire family.

Neal set high

Then a court took her along

We got him and Victor who lied

Oh, where he was always

This is how art and science led to his capture

The list family lived in this large Victorian home in the quiet affluent town of Westfield, New Jersey

John List was a 46-year-old accountant

He and his wife Helen had been married for almost 20 years

They had three children 16-year-old Patricia 15-year-old John and 13-year-old Freddie

John List's elderly mother Alma also lived with the family

In her own separate apartment on the third floor

The list children attended local schools and were all active and popular

John List was a devout Lutheran and taught Sunday school

In the fall of 1971 the list house stood empty

The family was away visiting a sick relative

But when a month went by with no signs of activity

Neighbors grew suspicious and decided to call the police

They felt that something was wrong and they asked us to check the house

Which we did

When police arrived they entered the house through an unlocked window

...