The truth that the majority of the British media never want us to remember, to the point where even a chant about it never being Liverpool's fault is treated as almost illegal and obscene. What a world we live in.
"There was a history of violence between English and Italian clubs, and the previous year’s final in Rome had ended in acrimony when Liverpool defeated the local side Roma on penalties. Roma fans, the police, and local hoteliers had all turned on Liverpool fans, who were forced to seek refuge in the British embassy.
Liverpool supporters considered Heysel an opportunity for revenge. The neutral section quickly filled with mainly Italian fans, and all that separated them from the Liverpool section was a flimsy fence. Taunts started, and then missiles began to fly. The fence was quickly
breached, and the Liverpool fans advanced. Panic erupted as Juventus supporters and others in the neutral section tried to retreat, only to find their way blocked by a concrete wall. The pressure proved too much, and the structure gave way, crushing the trapped Italian fans and others."
It was the wall's fault though right?!
Source:
https://www.britannica.com/event/Heysel-Stadium-Disaster