Taggart, Margaret and others in “Unfinished Business”

Margaret Balfour. [Referencing the picture of her as a teenager] Sixteen years have changed you... or maybe you've changed yourself. [He places the photo on the armrest of the settee next to Margaret.]

We destroyed all the later pictures.

[About Fiona] Take her out.

[To Fiona] Come on, hen. [Taggart leads Fiona to a waiting PC, who takes her out of the room so he and Livingstone can interrogate Margaret.]

How long have you known, Mrs. Robertson?

That Margaret was alive? For years.

You let David stay in prison for a... for a murder he never committed?

We all did!

Why?

Because if you told the truth, you, David and Mike would've gone inside for conspiracy to defraud.

Mike and David wanted my insurance money to start a car hire business.

So it had to look as if you'd died? Your car abandoned in a lay-by, the knife, the blood...

It was meant to look as though I'd been... killed by a stranger. David wasn't meant to go to prison for it. No-one was.

[Tuts] Poor David. He must've loved you a lot to carry the can for you.

When David came to see me three weeks ago, he... told me about the body. How it was Mike who put it there.

We both did, mum. [Christopher briefly starts crying. Margaret sighs] Mike picked a girl up in a railway station in London. We never even knew her name. Mike just made sure she was my height, age...

You killed a total stranger?

It was the only way to free David.

When did you do it?

After the trial.

And then you brought the body back to Glasgow in a trunk, planted it in a house you thought was going to be demolished, and left your wedding ring by the body.

David was convicted on evidence that he'd buried me. Circumstantial evidence that was wrong. Mike said if my body was to be found somewhere where David couldn't have put it... [Christopher squeals] Mike went to see David in prison. Told him what we'd done. Told him he'd only have to wait.

He did. Only you didn't.

Why did you look after the baby, Mrs. Robertson?

They're my grandchildren, aren't they? Even though I've never been allowed to see them... send them presents, anything. They didn't know I even existed.

Don't, mum!

[Choking back the tears] David told me you'd gone on holiday and couldn't take the baby. I never knew the truth... until I heard it on the news.

Sir, we're ready to go.

Come on.

Did David really want our money?

No, all he wanted was revenge, because you married his brother. Calling the police was the only thing he thought you'd never dare to do.

[Noticing Taggart has a dourer expression than usual] You ought to look pleased!

Because we got it right? I was happier when we were wrong.