Richard Schlesinger (48 Hours Correspondent)

Roger Harrington killed my wife.

I saw it with my own eyes.

Nearly seven years after Donna's death, Sarah Jane and Ira Drescher came to Mark Winger's trial knowing the evidence against him was strong, but still clinging to the hope that something would exonerate him.

Why were you so eager for him to prove that he didn't do it?

Did you kill Donna with that hammer?

No, I did not.

Mark Winger is a cold-blooded, calculated, deceitful person that planned and staged this event.

The prosecution team, led by John Schmidt, said Winger lied from the beginning.

Even during his 911 call.

It was a lie.

They say Winger knew very well who that man was.

He invited him to his house.

And that was the crux of their case.

Ray Duffy, who owned the airport van company, provided the crucial link for the prosecution.

It was obvious that he wanted to talk to the driver direct.

Duffy testified that Winger called to complain about Harrington's behavior during the ride and afterwards.

He just wanted to talk to this driver and tell him to leave his family alone.

Winger claimed Harrington was making anonymous phone calls to Winger's house.

So he wanted to talk to Roger Harrington?

Yes.