The "Blue Socks Dilemma" - was Christchurch Shooting staged?

Let's face it: Governments lie in order to serve political means, not alwas, but it has happened. The Christchurch Shooting made news around the world, within hours. It is easy to exploit this incident to take away the arms of the white, chrisitan popuplation in the West. A video emerged that shows the (?) shooter entering a mosque, killing a person who wears NO socks at the time. When the shooter leaves the place, the murdered muslim all of the sudden wears blue socks. Is it possible that this mass shooting was a staged False Flag?

Government lies that started wars:

• Gulf of Tonkin incident, 1964
• Nayirah testimony, 1990, Gulf War
• Weapons of mass destruction, Iraq, 2003