Police are still hunting a final mystery suspect in the Hatton Garden raid amid fears he may have fled abroad.
Two thirds of the £14 million haul stolen during the raid is still missing, and detectives from the Metropolitan Police's Flying Squad have issued an urgent appeal for the suspected thief - known only as "Basil".
Officers have thus far been unable to contact him, sparking fears he may have left the UK unnoticed, and have offered a £20,000 reward for information leading to his arrest.
"Basil" is thought to have been a key player in the raid - letting his co-conspirators into the building by opening the fire escape from inside.
He is thought to have disabled the alarm and also climbed through a hole bored in the vault wall, along with another man, to get to the deposit boxes.
Three men were found guilty on Thursday of being involved in the raid, believed to be the biggest burglary in British history.
Carl Wood, 58, and William Lincoln, 60, were convicted of conspiracy to commit burglary and conspiracy to conceal, convert or transfer criminal property.
Plumber Hugh Doyle, 48, was convicted of concealing, converting or transferring criminal property between 1 January and 19 May last year.
They were among a gang of eight who broken into the Hatton Garden Safety Deposit after using a drill to bore a hole into the vault wall.
Among the goods stolen were gold, diamonds and sapphires - with an estimated total value of up to £14 million.