When a woman was found murdered in her Springfield, Massachusetts apartment during the spring of 1984,

it only took a matter of days to zero in on a suspect and secure an arrest.

And then, at trial, a jury decided Edward Wright was guilty beyond a reasonable doubt.

The New England Innocence Project has since taken up his case.

So who really killed Penny Anderson?

Was it the man serving a life sentence for her death or someone else?

I'm Kylie Lowe and this is the case of Penny Anderson on Dark Down East.

A resident of an apartment building in Springfield, Massachusetts was in a deep sleep when something

cut through the quiet of his slumber just before 4 a.m. on May 14, 1984.

Blinking into the dark, it took a moment for him to register what he was hearing.

A woman was screaming, and it sounded like it was coming from the building next door.

The man rose and crossed the room to his window. His eyes tilted upward

to lights on inside a neighboring apartment in the same direction of the noise. He could just barely

make out the words. Please don't do it, she was yelling. The woman was calling out for someone

to call the police, but the neighbor stood there helpless.

He didn't have a phone.

For 15 long minutes, the screams continued before the night went quiet again.

Then all he heard was the distant sound of a car's engine turning over and driving off.

Hours later, around 2 p.m. that afternoon, a woman pressed her ear up against the door

of her daughter's second floor apartment at 306 Dwight Street Extension in Springfield.

She could hear a baby, her grandson, crying on the other side.

But when she knocked and called out to her daughter,

...