- [Cassie] These remains are those of a young female.
This is the body of a child.
- [Reporter] Hayley was just 16 when she disappeared.
There are bound to be serious questions.
Why no one was ever charged in connection with her disappearance?
- We let Hayley and her family down, and I remain deeply ashamed of the way the case was handled initially.
- The investigation has been reopened.
We will now turn all of our best efforts to finding the person responsible for this dreadful crime.
- DCI Stuart, why are the police so useless?!
- [Cassie] You've been forgetting lots of things recently.
- Actually, the problem is you because you're lonely.
I think it's best if I move in with Jenny for a bit.
- [Sunny] Whatever you guys want.
That's the only thing that matters to me.
- You're with Sal now, and that's the dad we like best.
- [Sunny] You stay long last night?
- [Cassie] Long enough for him to ask me out for dinner.
Feel like I'm slightly losing the plot.
- [Sunny] You're just tired.
- Oh no, no, no.
- [Superintendent] Who's file?
- [Cassie] Pete Carr's - [Superintendent] Any sensitive stuff inside?
- Lots.
If you need to take me off the case, I'll understand completely.
- [Man] Peter Carr's died.
- I am genuinely sorry about what you're going through.
I'll always be there, you know.
- I don't know if this is a good idea right now, John.
- I'll call you then.
- Timothy Finch, as you're being arrested, we have authority to search your premises.
- We found these.
A necklace with hair still attached to the clasp.
- The results of the tests have come through.
They're not Hayley Reid's.
(sighs) But they have found a match to the DNA of a 14-year-old girl who went missing in June 1997.
- The one common thread between these two tragic deaths is you.
- If we can do this properly, I'll tell you where the others are buried, too.
These girls.
Her name was Natasha.
I took her six years ago.
Alison wasn't my first.
- No more.
- I think that's the closest thing to evil I've ever witnessed.
You okay?
- [Cassie] I'm fine.
- Oh, there you are.
Maybe you might need to take some time off.
A bit of a rest.
- [Cassie] I think I'd like that.
- [Sunny] 30 years, that's a long time.
- [Cassie] Maybe long enough.
