The brother of a British-Iraqi man mysteriously gunned down with his family in the French Alps in 2012 was released from bail yesterday and told he faces no further police action.
Zaid al-Hilli, who was arrested in June last year on suspicion of conspiracy to commit murder, had his bail cancelled, Surrey Police said.
"At this stage, there is insufficient evidence to charge him with any criminal offence and no further police action is being taken at this time," it said.
Saad al-Hilli was shot dead along with his wife and her mother in September 2012 in a woodland car park close to the village of Chevaline, in the hills above Lake Annecy in southeast France.
His two daughters, aged seven and four at the time, survived the attack but French cyclist Sylvain Mollier, apparently an innocent bystander, was also killed.
The Hilli brothers were engaged in a bitter inheritance dispute which French investigators believed could have been a motive behind the killings.
Zaid al-Hilli listened yesterday as a police officer read out a statement to media outside the police station in the town of Guildford, southwest of London.
"This remains a French-led investigation and officers from the Surrey and Sussex major crime team continue to work closely with the French authorities," the officer said.
"We have carried out exhaustive enquiries in the UK on a number of active lines of enquiry," he added.
Hilli had previously publicly protested his innocence, accusing French investigators of a cover-up, but did not comment as he walked away from the police station.