Martin Richard was standing near the finish line, waiting for his father to complete the grueling Boston Marathon on Monday, when an explosion took his life.
He was 8 years old and in the third grade.
Neighbor Jane Sherman told WCVB that Martin was a typical little boy, who loved to ride his bike and play baseball.
Martin's mother, Denise, was hospitalized with "grievous injuries," The Times of London reported. She reportedly underwent surgery late Monday for an injury to her brain.
His 6-year-old sister, a first grader whose name was not made public, lost her leg in the blast, WHDH reported.
The status of his father, William, has not been released. A third child was reportedly unharmed in the explosion.
The Richard family hails from the Ashmont section of Dorchester, Mass.