MILLY Dowler was abducted on her way home from school in Surrey in March 2002.
The 13-year-old's body was discovered six months later - and for her sister Gemma, the pain of her death will never go away.
Who is Milly Dowlers' sister Gemma?
Gemma is the older sister of tragic Milly Dowler.
She was 16 at the time her younger sister was cruelly snatched by evil Levi Bellfield.
In 2017 Gemma published a book called My Sister Milly, which describes Milly's life from her birth until the day she was abducted,.
She says the best thing about writing the book was unearthing things from Milly's room, which she says was incredible, "the best way I can ever remember my childhood".
What has Gemma Dowler said about her sister's murderer?
Speaking in 2018 to the BBC's Victoria Derbyshire Show about Millie's death, Gemma described Bellfield's trial, when her parents were questioned by his defence, as the worst of her life.
"I was so angry and disgusted at the system - and the way we were treated - it was so weighted towards the defendant," Gemma says.
"It was so hard thinking about Bellfield having seen everything from the house, holding things Milly would have held and written. To be confronted by that was horrific."
The family's experience led to an outcry about the handling of victims.
What has Gemma Dowler said about having therapy?
Gemma credits much of her mental recovery to a type of therapy called eye-movement desensitisation and reprocessing (EMDR), which she tried after she saw it had helped her mother.
When Milly was taken it was "like a grenade went off in my brain", Gemma told the BBC, but the therapy "saved our lives".
EMDR works on the theory that traumatic memories have not been properly processed by the brain but can be reprocessed correctly via therapy involving eye movement and sounds or taps to the skin while going through the past traumas.
"It was a completely different way of looking at how we suffered, because it was dealing with trauma," says Gemma, explaining that it allowed her to express anger in a safe place.
"I knew I wanted to get better. As soon as I started remembering memories, I was able to clear the space to get them to come to the fore."
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What happened to Milly Dowler?
Milly was reported missing at 7pm on March 21, 2002, after she failed to return home.
Then on September 18, 2002, remains were discovered in Yateley Heath Woods in Hampshire, that were eventually identified by dental records as Milly's.
But it wasn't until 2011 that her killer Levi Bellfield was finally convicted.