In 10 months' time, Carol Heller went to the hospital 31 times, complaining of various ailments

that her doctors thought were all in her head.

That is, until she died.

This is how a forensic toxicologist and the middle-aged woman in a cheerleaders outfit cracked

the only known case of its kind in the history of forensic science.

After her divorce, Carol Heller moved to the small town of Perry, Oklahoma, to be closer

to her family.

With only 5,000 residents and almost no violent crime, Perry seemed like a good place to start

over.

Carol was fighting a lifelong battle with manic depression, also known as bipolar disorder.

Although Carol became active in the local church and developed a circle of friends, it wasn't

enough.

There are a lot of people who don't feel fulfilled unless they have a spouse.

They want someone in their life, and she wanted a man in her life.

So Carol decided to place a personal ad in a local Christian newspaper.

She was looking for a Christian male person who could take charge of household finances

and Dennis was the one that answered the ad.

Dennis Heller was a 51-year-old handyman.

When the two started dating, Carol's family made sure Dennis was aware of her past.

My parents talked to him about it, so he was aware that she had had some mental health

problems.

Within a year, Carol and Dennis were married.

...