cultural assailant 

A person in a position of authority who gains traction through self-aggrandizement and power-grabbing who concurrently attempts to rip apart the progress achieved in the fabric of that culture.

America has elected a most pernicious and destructive cultural assailant.

cultural assailant by Dr Bunnygirl July 22, 2019

assailant 

A person who attacks someone on a road or a masked attacker.

He was attacked by an unknown assailant.

assailant by DefinitionsFortheSoul November 24, 2009

unknown assailant

When a wife murders her husband.

Boomer: I have had serious and invasive and surgery and my husband was brutally murdered by an unknown assailant.

AFP: You had lip filler and your finger prints were on the mix master.

unknown assailant by Imwearingawire March 19, 2023