On 18 May, at the Islamic Centre of San Diego (ICSD), California, Cain Clark and Caleb Vazquez, aged 17 and 18 respectively, carried out a shooting that left three people dead. The two teenagers subsequently took their own lives. Both the attack and their suicides were livestreamed. The attackers’ modus operandi, their clothing, the customisation of their weapons, and the existence of a manifesto clearly highlight the presence of influences from the extreme-right accelerationist ecosystem. However, reducing the case exclusively to the extreme-right milieu would risk offering a partial interpretation of the phenomenon.