The man accused of gunning down gangland figure Kevin 'Gerbil' Carroll at an Asda car park has been cleared.
Ross Monaghan had been on trial for the murder at the supermarket in Robroyston in Glasgow.
The 30-year-old denied shooting dead the gangland figure on January 13, 2010.
On Friday the accused was cleared after the case against him collapsed because of insufficient evidence at the High Court in Glasgow.
The collapse of the case came after advocate depute Iain McSporran, prosecuting, withdrew charges against Monaghan relating to possession of the two guns used in the killing and prohibited ammunition without firearms certificates.
Monaghan had lodged a special defence of incrimination blaming several others for the murder, who could not be named for legal reasons.
Outside court, Mr Monaghan told reporters: "I've always said this was nothing to do with me. I'm just so glad it's over and now I can put it behind me."
In response to the decision, Strathclyde Police said it was "deeply concerned" about the result of the trial.
Assistant Chief Constable Ruaraidh Nicolson said: "The Chief Contable and everyone at the force is deeply concerned by the comments made by his Lordship and is determined to get to the bottom of what happened in this instance.
"This remains a live investigation and one named person is the subject of a European Arrest Warrant. As such the police will continue to make enquiries and will so in support of and under the direction of the Crown."
A single particle of gunpowder residue was found on a jacket taken from Mr Monaghan's wardrobe but Lord Brailsford ruled that the finding was "of no evidential value".
Forensic expert Alison Colley, from the Scottish Police Service Authority (SPSA), told the hearing, which took place without the jury present, that a single particle was insufficient to draw any scientific conclusion from.
But she said she had been asked to form her conclusion using the particle at the request of a detective superintendent involved in the investigation. The judge said he found her claim "disturbing".
He told the court: "Ms Colley informed the court that she had been requested to form her conclusions in the way she did by a DSI involved in the investigation. I'm bound to say I found this evidence disturbing.
"My understanding is that the SPSA is an independent body, distinct from the police, and its reports are intended to express independent expert statements of opinion."
Mr Monaghan lodged a special defence of incrimination, blaming eight other men for the death of Mr Carroll. Said to be a senior figure in Glasgow's criminal underworld, Mr Carroll "was not short of an enemy or two" and was a "maniac" who was "out of control", the jury was told.
The trial heard that he was shot dead while in the company of two other men: his driver, John Bonner, and associate, Stephen McLaggan. They told the court they fled from the front seat of the Audi when they saw a Volkswagen Golf pull up next to them. It also emerged that Mr Carroll had been locked in the car.
The court heard that Mr Carroll was trying to "move in" on other drug dealers and had told Mr Glen, an "independent", that he would be working for him from then on, during their conversation in the car park.
Mr Glen also said he had heard stories about Mr Carroll torturing, maiming and disfiguring his victims. The trial heard evidence from Francis "Fraggle" Green, the son of senior Glasgow gangland figure Jamie Daniel, and the brother of Mr Carroll's partner, Kelly Green.
He said he had beaten police to the scene, after receiving a phone call about his friend's death. Mr Green said he was phoned by Mr McLaggan, who told him: "Gerbil's dead."
During the trial he admitted eating his own Sim card to prevent police accessing information on it, and removing Mr Carroll's phone from his body.
During the 18-day trial, jurors heard that two masked men drew up to the Audi car Mr Carroll was in and shot him dead while he was trapped in the back seat, before speeding away.
Mr Carroll was shot in the head, chest, arm, hand, groin, back and abdomen, with one of the bullets leaving his brain exposed. One witness recalled seeing fragments of skull on the back seat of the car, while another described the shooting as being like "another Dunblane".
A bullet was found lodged in the car's manual, suggesting that Mr Carroll had tried to use it to shield himself from the shower of bullets.
The murder weapons - a pistol and a revolver - were found by six council gardeners 13 days later, dumped behind Coatbridge Library in Academy Street, North Lanarkshire. The gardeners went on to handle and "pass them around" while wearing wet gloves.
DNA matching Mr Monaghan's was found on the pistol but forensics experts were unable to tell the trial how it got there as it was such a tiny amount. The jury was told the size of the sample was "one billionth of a gram", or 0.1 of a nanogram. Humans shed on average 400,000 cells, each holding about one nanogram of DNA, every day, the court heard.
Jurors also heard there was DNA of "at least three other people" on the same gun. Lord Brailsford said it was "impossible" to say whether Mr Monaghan's DNA had arrived there as a result of primary, secondary or tertiary means, and that a "more remote" transfer could not be excluded.
The Crown had argued that a second "covert" phone allegedly used by Mr Monaghan to contact another man implicated in the murder, who cannot be named for legal reasons, was "suspicious and sinister".
However, Lord Brailsford said he considered it "fatal to their conspiracy theory" that the apparent "covert" phone was last used ten minutes before the meeting between Mr Carroll and Steven Glen was arranged. The court heard that Mr Glen had set up the meeting after being "threatened" by Mr Carroll, who told him he would be selling drugs for him from then on.
Lord Brailsford also said no evidence had been led about a third phone which the Crown had argued was involved in the murder, despite police compiling a list of 99 suspects after Mr Carroll's death. Mr Monaghan was not on the police's suspect list.
Defence QC Derek Ogg made a legal submission to the court on Tuesday and Wednesday, arguing that the evidence was insufficient in law to convict Mr Monaghan. Also on Tuesday, advocate depute Iain McSporran, deleted five of the seven charges against Mr Monaghan, which related to resetting the stolen vehicle used during the shooting and possessing guns and ammunition.
Lord Brailsford told the court: "I am unable to accept that the Crown's theory has any evidential basis. "I uphold the no-case-to-answer speech and acquit the accused of charges two and seven (of murder and attempting to defeat the ends of justice)."