Sandy Hook Elementary victim: James Mattioli, 6

James Mattioli especially loved recess and math, and his family described him as a "numbers guy" who came up with insights beyond his years to explain the relationship between numbers. He particularly loved the concept of googolplex, which a friend taught him.

He was born four weeks before his due date, and his family often joked that he came into the world early because he was hungry.

They wrote in his obituary that 6-year-old James, fondly called `J,' loved hamburgers with ketchup, his Dad's egg omelets with bacon, and his Mom's french toast. He often asked to stop at Subway and wanted to know how old he needed to be to order a footlong sandwich.

He loved sports and wore shorts and T-shirts no matter the weather. He was a loud and enthusiastic singer and once asked, "How old do I have to be to sing on a stage?"

His family recalled that he was an early-riser who was always ready to get up and go. He and his older sister were the best of friends. He was a thoughtful and considerate child, recently choosing to forgo a gift for himself and use the money to buy his grandfather a mug for Christmas.

A funeral for James will be Tuesday in Newtown.