Who were the suspects of thomas beckets death?

The primary suspects in the death of Thomas Becket, the Archbishop of Canterbury, were four knights loyal to King Henry II of England: Reginald fitz Urse, Hugh de Morville, William de Tracy, and Richard le Bret. They believed they were acting on the king's wishes after Henry's frustration with Becket's opposition to royal authority. The knights confronted Becket in Canterbury Cathedral on December 29, 1170, leading to his murder. This act ultimately sparked outrage and led to Becket's martyrdom and canonization.