In 2015, the Hatton Garden Jewellery Quarter in London witnessed one of the most audacious heists in British history. Led by Brian Reader, a gang of elderly raiders ransacked a safe deposit facility, stealing millions in jewels and precious metals. Despite their initial success, all the gang members were eventually caught and sentenced for their crimes. Reader, the mastermind, was released from prison in 2018 but passed away in 2023, leaving millions in loot still unaccounted for.