For more than a year, angry, hateful letters were sent to a first grade school teacher

in a small mountain village in Pennsylvania.

Many were sexual in nature, some threatened violence.

When scientists analyzed the letters, they found evidence that the stalker knew a lot

about the victim more than anyone could possibly imagine.

In 1993, some hate mailed began to arrive at the Cool Ball Learning Center, a public

elementary school in the Pocono Mountains in Eastern Pennsylvania.

The letters were unsigned and sent to the principal, making serious allegations against

a first grade reading teacher, Joanne Chambers.

She had been teaching in the school district for the past eight years.

Chambers brought pot into school and then showed it in the faculty room, just like it was

a big joke.

I thought it was just somebody a disgruntled employee.

I just wanted to know who it was and I thought it was a thing that you could sit down with

that person and talk it out.

You fix it.

Soon, letters were sent to Joanne Chambers herself at both home and at school.

Joanne Chambers was popular with students and was an unlikely target of a hate campaign.

She was married with a 10-year-old son and had no known enemies.

I can speak with assurance about Joanne's teaching abilities.

She's highly recommended by other teachers in the district.

She was also highly respected by parents.

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