The siblings of murdered teenager Stephen Lawrence have had their lives affected "more than anyone could know" in the 20 years since his death, their mother said today.
Doreen Lawrence, 60, said Stuart and Georgina try not to dwell on the tragedy but it will never leave them.
It is 20 years since 18-year-old Stephen was murdered by racists as he waited for a bus in Eltham, south east London, on April 22 1993.
His parents, Doreen and Neville, were forced to fight against institutional racism in the police and incompetence in the initial investigation into his murder while they should have been left to grieve.
It took nearly 19 years for two of his five or six killers to finally be brought to justice.
Speaking to the Press Association, Mrs Lawrence said of Stuart and Georgina: "Their lives have been affected more than anyone would know from the outside.
"They do the best they can and, like me, they don't really dwell that much, but you know in their moments how depressing it is for them.
"They've got their own families now. So, like we all do, they try to move forward and make the best of what they have. But those moments are always there, you can't get rid of them."
Earlier this year, a racist, threatening letter directed at Stuart was sent to the charitable trust set up in his brother's memory - the first time that he had been targeted.
Sadly Mrs Lawrence has received threats herself before and is used to the memorial plaque to her son being vandalised. Damage has also been caused to the Stephen Lawrence Centre in Deptford, south east London.
She said: "Any time anything happens that brings Stephen's name to the forefront we get something. Whoever it is, they don't like to hear Stephen's name, they think 'He's dead, let's move on, let's forget about it'.
"It's fine for them, they can, but for us we don't want to forget about him. He was part of our lives and we don't want to forget about him.
"There are still individuals out there for whom Stephen's name seems to resonate not for good but for bad. But Stephen never did anything wrong to anybody."
She said aspiring architect Stephen was "no different" from any other teenager, but he could have had a bright future.
"Stephen was just an ordinary young man. He enjoyed music, he loved fashion. He was an academic so he had a future. Stephen was special to us because he was our child, but he wouldn't be special to anybody else, he was just an ordinary young man growing up.
"He knew what he wanted and he would have achieved what he wanted, given the opportunity. He was no different to any young man growing up."
The shambolic police handling of the initial investigation into Stephen's death led to the Metropolitan Police being branded institutionally racist and coming under fire for an incompetent inquiry.
Mrs Lawrence said she can "only hope" that the force has changed in the past two decades.
She said: "I can't say they definitely have changed. I don't think anybody knows apart from those who are working inside.
"There are those who are trying their best to make a difference, but does it actually feed down to the officer on the beat who actually carries out the work? You don't know. To say that the Met has changed, you can only hope."
When Gary Dobson and David Norris were finally convicted last year, Scotland Yard stressed that it had changed as a force and had learned lessons from the case.
The prosecution team in the trial, Mark Ellison QC and Alison Morgan, are now leading a review looking at whether there is evidence of corruption in the original investigation.
Claims were made by lawyers acting for the Lawrence family that some officers may have been influenced by Norris's drugs baron father, Clifford Norris.
Mrs Lawrence fears there may not be enough information in police records to come to a definite conclusion.
"I think they're doing mainly paper-based stuff. You begin to wonder what information do they have to look into? You suspect and you believe that there must be some corruption, but how do you actually get to the root of it and get the truth out if they weren't making notes that could be followed up on?"
The mother of three said she does not see the case of her son's murder as being unique.
"The only way you can say it's unique is because we have kept the pressure up on the police. I don't see the case as being unique in itself because there have been other murders and continue to be other murders where families are still waiting for justice.
"It's only because we have pursued and kept up the pressure why it comes across as being unique."
Today she will mark the 20th anniversary milestone with a memorial service at St Martin-in-the-Fields near Trafalgar Square.
She said it is difficult to believe that nearly two decades have passed since her son's death.
"It's hard to believe it has been that long. When you're young 20 years seems so far away, you can't imagine it.
It's difficult and I think Stephen's death will be something that is always at the forefront of my mind, and it will feel unbelievable that something like this could happen.
"In your quiet moments it's always there. It's not something you can just close the shutter and it will go away."
The Stephen Lawrence Trust was set up to help young people from disadvantaged backgrounds to have a better future.
Mrs Lawrence said: "I believe that Stephen's life had value. His life is giving life to other young children.
"For me there are times when you're angry about certain things, but then you always have to look at the positive. You always have to look forward, because if you don't look forward then life just stands still."