When a person is cremated, the heat usually destroys any evidence of foul play.

At least, that was the theory, until a scientist in Texas found a way to test cremated remains.

And in so doing, made forensic history.

San Angelo, Texas, known for its oil, cotton fields, and extremely hot weather.

It's great country, there's a lot of rural area to it.

Of course, the biggest problem to have out there is you don't get a whole lot of rain.

Bulgi and Lita nobles ran the town's air conditioning business, and they had no shortage

of customers.

Perhaps it was the strain of both living and working together, but the two didn't always

see eye to eye.

It was that kind of different relationship where there was love involved, but you couldn't

tell it from the outside.

Mr. Nobles had a real drinking problem, and they already like cats and dogs.

At the age of 70, Bulgi died after a lengthy illness.

Shortly after the funeral, his wife Lita checked herself into a hospital.

She hadn't been feeling well for weeks.

I just said, just vomiting all the time.

Just definitely sick at my stomach, and I just get weaker in the weaker.

Lita blamed the stress of her husband's death for her illness, but doctors found nothing

wrong and released her.

Within days, the nausea and vomiting returned, and Lita developed another symptom, numbness

in her fingers and toes.

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