I read 75 Crime/Suspense/Mystery/Thrillers this year.  These were my favorites... #10  My Sister, the Serial Killer by Oyinkan Braithwaite Korede is bitter. How could she not be? Her sister, Ayoola, is many things: the favorite child, the beautiful one, possibly sociopathic. And now Ayoola's third boyfriend in a row is dead. Korede's practicality is the…