Obviusly the killer in the crafting dead and herobrines daughter.
Note: Minify the command to avoid issues :)
TNT XP Orb
Floating Armor
poor old cracked wooden sword
Anti Herobrine Potion
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)