THE families of two young students mowed down on a city centre pavement have laid floral tributes at the site of the tragedy on the fourth anniversary of their deaths.

Mhairi Convy, 18, and Laura Stewart, 20, were walking in Glasgow's North Hanover Street on December 17, 2010 when a Range Rover driven by William Payne apparently lost control and smashed into them.

A Fatal Accident Inquiry (FAI) into the deaths was published last month and found that the tragedy could have been prevented if a number of precautions had been taken, including Mr Payne notifying the DVLA about blackouts he had experienced. His GP and consultant could have advised him not to drive, the FAI judgement said.

Mr Payne, 54, appeared at Glasgow Sheriff Court in November 2012 accused of causing death by driving while uninsured, but charges against him were dropped a year later.

Both families want the pub DJ, from Bishopbriggs, East Dunbartonshire, to be prosecuted and they are calling on the Lord Advocate Frank Mulholland to help them get justice for their daughters.

Mhairi's father Alan, 50, of Lennoxtown, said: "This is the first time we have visited the site.

"We have always avoided coming here but we felt at some point we had to and it was the right thing to do, to put some flowers down and visit it at this time of year.

"It is really painful day just to be here where it happened and we will be spending the day with family just remembering our daughter."

Family and friends of both families were united in grief as they tied bouquets of white and pink roses to the railings where the women were hit by the 4x4.

Laura's mother Linda, from Cumbernauld, said: " We have come here every year since it happened because this is where our daughters died.

"It is very painful but it is something I have to do.

"Four years and we are still waiting for the Crown Office to tell us what's happening."

Their lawyer Fraser Simpson, partner at Digby Brown Solicitors, said: "The families have suffered four years of torment aggravated by a failure of the Procurator Fiscal and Crown office to come to a final decision to allow them to see justice.

"It is time for this torture to be brought to an end. It is unnecessary and time for the Crown to do their job and represent the public which is what they are meant to do."

The Crown Office said the case would be "re-investigated".

A spokesman said: "Following the issue of the Sheriff's determination into the circumstances of the deaths, Crown Counsel has confirmed that a re-investigation of the circumstances is to be carried out."