Diana Greene was just 20 years old and pregnant

when she was brutally raped and beaten in her apartment.

The assault caused the death of her unborn baby.

When Diana came out of a coma three weeks later,

she told police she knew the identity of her attacker,

but was her memory accurate.

In 1979, Diana Greene was in the first year of marriage to Kevin Greene,

a 21-year-old marine stationed at the El Toro Military Base in Tustin, California.

On September 30, 1979, Diana was 9 months pregnant and the baby was due any day.

Come on, what's the matter with you?

That night, neighbors said they heard the couple engaged in a heated argument,

just one of many and what was described as a volatile relationship.

I'm not a man, you're my friend sometime.

Well, maybe you didn't drink so much. I won!

Now leave me alone!

At 1.30 in the morning, Kevin Greene left the apartment for a hamburger at a fast food restaurant.

When he returned a half-hour later,

Kevin said his wife was bleeding from a gaping head wound and a phone police.

Officer Paul Wright was the first to arrive at the scene.

I didn't see anything obvious to me that was used to cause that type of an injury.

At the time, I honestly believe that she'd been shot.

That's how the injury looked to me and that's even this many years later,

...