What happened to Simon after Acts, according to archaeological and historical findings?

Les explains that Simon did not receive the Word in his heart; he only saw with the physical and material what could be gained. Peter told him to repent of his wickedness and pray that the thought of his heart might be forgiven, but Scripture gives no indication Simon ever changed his mind. Les notes that a book they read recently suggested Simon was probably the promoter of what was later called Gnosticism, a total counterfeit of Christianity. He says Simon went from Samaria according to some archaeological, historical findings and actually became the enemy of the Gospel. Les can believe that because Simon was a satanically endowed individual.