The little boy who was hit and killed by a school bus in Boston was identified by his family Tuesday as 5-year-old Lens Arthur.He was hit by the bus on Washington Street in Hyde Park Monday afternoon on his way home from kindergarten at the UP Academy Charter School.

An investigation into the accident is ongoing, Police Commissioner Michael Cox said, and the bus driver has been cooperating with authorities.

A heartbreaking memorial began to grow as a community grieved Tuesday on Washington Street in Hyde Park where a 5-year-old boy was tragically killed by a school bus that had just dropped him off