Complex sentence: Terry Pruit tells the others that, since he's found the group, he has made amends for his past, but another member, Ed, tells him that humans are unable to change and that they are both destined for Hell.
Split into simpler sentences: Terry Pruit tells the others that, since he has discovered the group, he has made amends for his past. However, another member, Ed, tells him that humans are unable to change and that they are both destined for Hell.