An A&E original podcast.

This episode contains descriptions of violence and sexual assault.

Use your best judgment.

In 1989, 3M worldwide was the largest employer in the state of Minnesota.

One employee, 38-year-old Sharon Bloom, was working hard to make her way up the corporate ladder.

After a promotion, it became clear that it wasn't only Sharon's superiors that had noticed her work,

and she became the victim of office pranks that escalated into harassment.

Personal items like her keys or glasses would go missing, only to show up a few days later.

Some presentations and documents that Sharon was working on were taken from her desk, and a pot

of coffee was even dumped onto her chair. This is Sharon's boyfriend, David Kofod.

One day she came home and was in tears,

and her reaction was, what could I have done to somebody

that could cause them to hate me so much?

On November 2nd, after her commute from her suburban home in Woodbury, she arrived at the office around 7.30 a.m.

She worked until around noon and then was seen with her coat on, likely going to get lunch.

That afternoon, none of the calls to her cubicle were answered, and Sharon didn't make it home for dinner.

Her body was found a week later. Sharon had been murdered.

From A&E, this is cold case files.

When Sharon didn't get home at the usual time, her boyfriend David started to worry.

So at about seven, I started to call her friends.

There was only two places I thought that she might have gone to, and she wasn't an either. Sharon hadn't been missing long enough

for the police to start an investigation. So David called Sharon's company and asked the night shift

...