Almost Genius: Audacious Near-Misses from the World’s Boldest Heists

Brian Reader, age seventy-six, took the bus to pull off the biggest burglary in English history. Last week, on Almost Genius, we explored cons that fell apart at the last second. This week, we have a heist so brazen, so meticulously planned by men most people would dismiss, that you can't help but admire the sheer, audacious nerve. Easter weekend, 2015.

London’s jewelry district, Hatton Garden, is a ghost town. The shops are shuttered. The streets are empty. But inside the Hatton Garden Safe Deposit building, something is moving. A team slips down a lift shaft, disables the alarms, and gets to work. Their target is behind fifty centimeters of reinforced concrete. Their tool? A diamond-tipped industrial drill.

This wasn't a smash-and-grab. This was a symphony of crime, planned for nearly three years. The orchestra was a crew of career criminals, most of them old enough to collect a pension. The "Bad Grandpas," the press would later call them. Ringleader Brian Reader, the seventy-six-year-old "master." John "Kenny" Collins, seventy-four. Terry Perkins, sixty-seven.

They weren't just old—they were old-school. They studied security guard patterns. They practiced drilling. They financed the whole thing themselves. No syndicates, just personal savings and a shared, audacious goal. For three days, they drilled. The Hilti DD350 drill screamed, boring three overlapping circles into the vault wall. It was slow, brutal work.

Equipment failed. A hydraulic ram they brought to move a cabinet proved too complex. They had to stop, leave, and come back the next night. But they kept at it. Finally… a breakthrough. A hole just big enough for a man to squeeze through. "Boom," Terry Perkins would later say, miming an explosion. They were in. Inside, they ransacked seventy-three safe deposit boxes.

Gold bullion, diamonds, luxury watches, cash. Fourteen million pounds worth. They packed it into wheelie bins and walked out into the quiet holiday morning. For a moment, it was perfect. The perfect crime, executed by men everyone had forgotten. But perfection is fragile. And their plan had tiny, hairline cracks. The alarm system… it wasn't fully disabled.

A single radio signal had been sent. The company owner sent a guard, but he saw nothing amiss from the outside and left. A fire door was left ajar. And the biggest mistake of all? They didn't know the police were already watching them, for weeks, for an unrelated matter. Those tiny cracks were all investigators needed. They pulled the data from the partial alarm.

They found the open door. They reviewed surveillance footage and identified Kenny Collins's white Mercedes. From there, the whole network unraveled. The old men were arrested. Most got six or seven years in prison. And yet… there’s a part of the story that feels like a win for them. Of the fourteen million pounds stolen, only four-point-three million was ever recovered.

The rest—nearly ten million pounds worth of jewels and gold—is still missing. The "Bad Grandpas" went to jail, but they never told anyone where they hid the treasure. They took that secret with them. The Hatton Garden heist is a masterclass in audacity. But it’s also a lesson in humility. You can plan for three years, you can defeat a concrete vault, you can have the experience of a lifetime… but you can still be brought down by a single missed detail.

An alarm you thought was off. A door you forgot to close. Sometimes, the thing that undoes the most brilliant plan isn’t a brilliant counter-move. It’s just a simple, human mistake.