Convinced that Cathan has betrayed him , Imre murders his friend .
Coel continually sows mistrust between Imre and Cathan , and eventually succeeds in framing Cathan for the murder of another Deryni lord .
Convinced that Cathan has betrayed Imre , Imre murders Imre 's friend .
Coel continually sows mistrust between Imre and Cathan , and eventually succeeds in framing Cathan for the murder of another Deryni lord .