Alton Brown's Shrimp Cocktail

INGREDIENTS

• 32 raw tail-on shrimp (21 to 25 count size)
• 1/4 cup kosher salt
• 1/4 cup sugar
• 1 cup water
• 2 cups ice
• 1 (14 1/2 ounce) can diced tomatoes, drained
• 1/2 cup prepared chili sauce
• 4 tablespoons prepared horseradish
• 1 teaspoon sugar
• 3 grinds fresh black pepper
• 1/2 teaspoon kosher salt
• 1 tablespoon olive oil
• 1 dash Old Bay Seasoning