This is the heroic Polish kitchen worker who battled London Bridge terrorist Usman Khan with a 5ft pole as he launched his bloody knife attack.
Lukasz Koczocik, 38, grabbed the 5ft-long ceremonial pole from the walls of Fishmongers' Hall and tackled Khan during the attack last Friday.
Sadly, two former Cambridge university students died in the devastating attack - Saskia Jones, 23, and Jack Merritt, 25 - but witnesses say more people could have lost their lives if Mr Koczocik had not not stepped in to fight back.
Mr Koczocik had been washing glasses in the basement at the time and ran upstairs after hearing desperate screams coming from upstairs.
The kitchen worker launched at the 28-year-old terrorist and thrust the pike into his chest to stall the attack, while a second hero grabbed a narwhal tusk from the walls as a weapon and a third used a fire extinguisher.
Mr Koczocik has since been praised by his boss for his bravery.
CEO of Fishmongers' Hall Commodore Toby Williamson told the BBC: "He's the guy who cleans the glasses down in the basement and that's exactly what he was doing when he hears this scream.
"The scream was so loud that, as a first aider, he makes a choice. He goes towards the trouble. He gets there on the first floor of the building just behind me and it's pretty clear that there's a bad guy.
"He's got two knives in his hands, there's blood, there's screams, there's chaos.
"Lukasz pulls off the wall this long stick, he charges towards the bad guy, and he impacts him on the chest and there's clearly something here that is protective and it doesn't make any sort of impact.
"But he's buying time. He allows others to escape, to move to adjacent rooms. At that point he's got about one-minute of one-on-one straight combat."
The attacker had managed to stab the hero kitchen worker four or five times in the left of his body, but despite being seriously injured, he refused to give up, Mr Williamson said.
The battle spilled out in to the main hall, where a conference organised by a University of Cambridge programme called Learning Together was being held.
Khan attempted to flee down the main staircase to the front-door when he realised the scale of numbers against him, MailOnline reports.
A doorman named Gary rushed to hold the door shut so that another worker, Dawn, could ring the emergency services and hit the alarms.
Khan then started to attack two cloakroom girls, named as Alla and Sandra, before stabbing a maintenance man named Andy, Mr Williamson said.
The attacker then managed to burst out of the hall onto London Bridge, but the CEO said Mr Koczocik still "lead the attack" against him, trying to restrain him.
Mr Koczocik shouted at members of the public to get back before collapsing to the floor from the blood loss as the battle continued onto the bridge.
Mr Williamson said that by this stage, Mr Koczocik's "job was done, the police are here and I think you've seen the rest on camera."
Dramatic footage which emerged soon after the attack showed the men armed with the tusk and the fire extinguisher bravely going after Khan and tackling him to the ground.
Khan, who was wearing a fake suicide west, was shot in the chest by armed police officers shortly afterwards.
Mr Koczocik, who was released from hospital on Saturday, is now being put forward for an official honour in Poland, acknowledging his 'courage'.