Not only are these suspects known to Western authorities, but they are also affiliated with Western-sponsored terrorist organizations most notably Al Qaeda, its various franchises, and the so-called Islamic State in Iraq and Syria (ISIS) which have for nearly a decade served as proxies in Western-engineered regime change wars aimed at Libya, Syria, Iraq, Yemen, Iran, and beyond.
https://21stcenturywire.com/2020/02/13/london-attack-known-wolf-terrorist-in-war-on-terror/