Lester Holt

I think my wife is having a stroke.

An hour later, she was back at the hospital she'd just left.

She had this blank stare in her eyes.

Three days later, she was dead.

I'm seeing a healthy white female that for all intents and purposes should be alive.

To them, this was out of this world.

Just couldn't make any sense out of it.

But it soon became a murder mystery.

Because once they finally discovered what killed her, the next question was who.

If he couldn't have her, no one was going to have her.

I'm Lester Holt, and this is Dateline.

Here's Dennis Murphy with Lethal Weapon.

The emergency room trauma team was losing her.

She'd been wheeled in glassy-eyed and gasping for breath.

And within minutes, machines were doing the breathing and blood circulation for 41-year-old Autumn Klein, wife, mother, medical doctor, a rising star in the field of women's neurology, a star whose light was dimming even as they tried desperately to keep her going.

These are doctors who are treating trauma patients every day.

This one had totally puzzled them.

The woman failing in the ER, Dr. Klein, was in many ways what modern Pittsburgh was all about.

The gleaming downtown towers didn't need to worry anymore about grimy soot from the steel mill smokestacks along the river.

The steel industry here had mostly died by the early 80s and moved overseas.