Have a look at this in connection with the attack:
https://cathedral.southwark.anglican.org/about/news/symbols-of-life-and-healing-the-first-anniversary-of-the-london-bridge-attack/
Have a look at this in connection with the attack:
https://cathedral.southwark.anglican.org/about/news/symbols-of-life-and-healing-the-first-anniversary-of-the-london-bridge-attack/