THERE was a killer twist in EastEnders' 30th anniversary edition.
The epic show saw street villain Nick Cotton pass away, his mother Dot carted off to jail, baby Pearl delivered in the Queen Vic bathroom and Lucy Beale's killer finally revealed - as her brother Bobby.
All signs pointed to Lucy's stepmum Jane when the first hour-long live episode wrapped at 8.30pm, but a second instalment unravelled the truth.
Lucy's devastated father Ian Beale was the first to come to the realisation that his wife may have been responsible for his daughter's murder.
The key moment came as Ian made a phone call saying: "It's me. I know. I know you killed Lucy. Get everyone out of the house, I'm coming home."
Viewers were then shown Jane walking into the room and Ian demanded: "Tell me exactly what happened that night."
But when a second flashback episode aired at 9.30, it culminated in a true shocker - that Lucy was killed by her little brother Bobby.
It was the highlight in a tense back-to-back duo of EastEnders episodes watched by millions.
An interview with Taoiseach Enda Kenny on PrimeTime was even delayed for the second broadcast.
The jam-packed 30th anniversary saw new life brought into the show as baby Pearl - a nod to the show's Pearl anniversary.
The second show was a flashback to the night of Lucy's death and revealed all.
Viewers saw Lucy having arguments with her lover Max's daughter Abi, her father's girlfriend Denise and her brother Bobby.
But few expected the killer twist that saw Jane rush to the house - to find Lucy's dead body and Bobby standing over it.
The 11-year-old said: "Whatever she says, she started it."