 In his jail cell , Martin cuts his own throat with a concealed razor blade ; however , a coroner later finds that his death was caused by an aneurysm . Black believes that Pepper is somehow involved . Watts and Black find Atkins murdered in a hotel room , and chase a suspect down a fire escape and into a supermarket . Inside , Black finds Pepper , but as Pepper moves in and out of view , his appearance seems to change to that of Martin , and then of Lucy Butler ( Sarah @-@ Jane Redmond ) , the woman Black suspects to have killed Bletcher . Pepper leaves the supermarket and approaches his car , where he is confronted and killed by Sammael . As Black apprehends Sammael , he is told that Pepper was killed as a " consequence of his own error " ; Black takes it to mean that there is a larger mystery to which his own involvement is only tangential . 
