It happened on the A1 near Dunbar.
Bailey Family Thank Public For Support
The family of Bailey Gwynne have thanked people for the support they have received after viewing floral tributes left at the school where the teenager was fatally stabbed.
Relatives of the 16-year-old made a private visit to Cults Academy in Aberdeen over the weekend.
The school reopened today for the first time since the incident last Wednesday.
In a statement released through Police Scotland, the teenager's family said: "Thank you for all your help. Your kinds words and the lovely things you have left for Bailey.
"It means a lot and it would have meant a lot to Bailey.
"For all of you that were part of his life, however big or small, thank you for being there.''
They have previously paid tribute to the fifth-year pupil, describing him as their "beloved boy'' and saying ``our hearts have gone with him''.
As pupils returned to classes this morning, Scotland's First Minister said she hoped it would be the start of the healing process.
Nicola Sturgeon added: "My thoughts remain with Bailey's loved ones and, indeed, all of those who knew him following this heartbreaking incident.''
Ms Sturgeon spoke ahead of private talks with Chief Superintendent Adrian Watson, Police Scotland's commander in Aberdeen, city council leader Jenny Laing and chief executive Angela Scott.
Ms Sturgeon stated: "Everyone in Scotland was deeply shocked and saddened by the events last week and it is important for me to let the council and the police know, in person, that the Scottish Government stands ready to provide any help that may be needed as they support the school community in the weeks and months ahead.
"Bailey will never be forgotten but as the students return to Cults Academy today, I hope that they can begin to see a semblance of normality and begin the healing process.
"The response to this tragedy - from everyone in Aberdeen - has been truly remarkable and I hope that the community spirit and support we have seen can offer a small amount of light in the city at this difficult time.''
Council leaders have already said measures have been put in place to help pupils, families and staff affected on their return.
The floral tributes have been moved from the gates of the school to a private courtyard where pupils can pay their respects and special assemblies were due to be held.
Hundreds of Bailey's friends and fellow students also attended a vigil at Cults Parish Church on Thursday night, where candles were lit and messages of condolence written.
A 16-year-old boy, who cannot be named for legal reasons, has been charged with murder and remanded in custody.
He was also charged with having a blade or point on school premises and is expected to appear in court again on Friday.
Speaking outside the school gates today, Gayle Gorman, director of education and children's services at Aberdeen City Council, said: "The children and staff of Cults Academy have returned to school this morning. The school is calm, settled and reflective.
"There have been a number of assemblies, where we have spoken to the students about their feelings, allowed them to reflect and explained how we will support them across this week, and the weeks and months ahead.
"Counselling services continue to be available for both pupils and staff on site and a range of support teams are available as required.''
She said a book of remembrance has been opened for pupils and she also expressed thanks to those who have offered support and condolences.
The 26 year old was first targeted in Briarscroft Road.
Euan Johnston was shot in his car last month.
The family of three crash victims took their case for the 59-year-old to be put on trial to the Appeal Court in Edinburgh earlier this year.
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