HM – Christopher Evans/Boston Herald – “An Incomprehensible Tragedy” On a day that President Obama said was the worst day of his presidency, a gunman entered the Sandy Hook Elementary School in Newtown, Conn. and fatally shot 20 children and six adult staff members before committing suicide. The massacre, the second deadliest school shooting in U.S. history, happened in a town that has seen one homicide in the previous 10-years prior to the school shooting.A child gazes from a school bus as it passes by the St. Rose of Lima Catholic church while mourners gathered for a funeral service for shooting victim Jessica Rekos, 6, on December 18, 2012. Police officers hug outside the funeral of Noah Pozner at the Abraham L. Green and Son Funeral Home in Fairfield, Conn., on Monday, December 17, 2012. Pozner was one of 20 children killed Friday morning at the Sandy Hook Elementary School. A child pauses at a candle memorial for the victims of the Sandy Hook Elementary School shooting at Saint Rose of Lima Roman Catholic Church in Newtown, Conn., on Sunday, December 16, 2012. Family and friends arrive for the funeral of Noah Pozner at the Abraham L. Green and Son Funeral Home in Fairfield, Conn., on Monday, December 17, 2012. Pozner was one of 20 children killed Friday morning at the Sandy Hook Elementary School. Crowds gather at a shrine in the village of Sandy Hook in Newtown, Conn., on Sunday, December 16, 2012. A guest reacts outside the Abraham L. Green & Son Funeral Home in Fairfield before a funeral for Noah Pozner. Pozner was one of 20 children killed at the Sandy Hook Elementary School. Pallbearers carry James Mattioli’s casket from the Saint Rose of Lima Roman Catholic Church during the six-year-old’s funeral in Newtown, Conn., on Tuesday, December 18, 2012. Mattioli was one of 20 children killed at the Sandy Hook Elementary School. A police officer comforts a woman as they attend a funeral service for Noah Pozner, one of 20 children killed at the Sandy Hook Elementary School. On a day that President Obama said was the worst day of his presidency, a gunman entered the Sandy Hook Elementary School in Newtown, Conn. and fatally shot 20 children and six adult staff members before committing suicide. The massacre, the second deadliest school shooting in U.S. history, happened in a town that has seen one homicide in the previous 10-years prior to the school shooting.