Police investigating the murder of a man on Merseyside five years ago have doubled a reward for information.
James Stanton, 58, was shot in the head by men who burst into Aintree Commercial Vehicles in Thornton on 24 July 2006.
They fled the scene in a stolen blue Toyota Avensis car, registration DM53 MKK, which was later found burnt out.
Police have offered a £20,000 reward for information leading to the arrest and conviction of the men.
The car, which had been stolen from Sefton Street, Liverpool, on 25 May 2006, was later found burnt out on Blindfoot Road, Rainford.
Officers want to speak to anyone who may have seen the vehicle between 25 May and the day of the murder, and anyone who witnessed it being abandoned in Blindfoot Road.
Det Ch Insp Dave Brunskill said: "Five years on Mr Stanton's family have not been afforded the good grace of being able to see those responsible for his death convicted and they have still had no closure.
"Before they can start to rebuild their lives they need to see those responsible for his death brought to justice."
He added: "This incident happened on a busy route out of the city centre, at 6pm during the rush hour. There will have been plenty of people in the area at the time, both pedestrians and motorists."
Mr Stanton had four children and nine grandchildren, and was a keen squash player and Jujitsu instructor.
Merseyside Police initially offered a £10,000 reward to anyone who supplied information leading to a prosecution.