[1] In 2013 EL Pais reported that 35 Iranian dissidents said to be affiliated to the National Council of Resistance of Iran (NCRI) gave VOX about one million euros.

[2] After 2014, Vidal-Quadras operated pro bono the International Committee in Search of Justice, a Brussels-based lobby supporting the NCRI against the Iranian government.

[3][4] Vidal-Quadras has aligned with People's Mojahedin of Iran, which led the Iranian Foreign Ministry to impose sanctions on him in 2023.

Currently four individuals have been arrested in connection with the shooting, while the alleged shooter, a French citizen of Tunisian descent with multiple prior convictions in France, is still at large.

Also Vidal-Quadras called for a change in the EU policy towards the Islamic Republic to avoid trying to "appease, to negotiate, to dialogue and to make concessions".