By Denny Dyroff, Entertainment Editor, The Times Slayer Tonight, area fans of thrash metal music know that there is only one place they should be – the Santander Arena (700 Penn Street, Reading, www.santander-arena.com). Tonight, the arena in Berk County is hosting “Slayer’s Final World Tour — Leg 1, North America.” Joining Slayer is second-billed Anthrax, thus offering fans an opportunity...