NEWTOWN - Saturday marks the one-year anniversary of the Sandy Hook Elementary shooting.
News 12 Connecticut spoke exclusively with Bill Sherlach, who lost his wife Mary, a school psychologist.
Sherlach says that when he found out his wife had been killed, he had to make a choice to either be overcome by grief or to turn the tragedy into something positive.
EXPANDED COVERAGE: News 12's Newtown Coverage
Sherlach and his family started Mary's Fund to raise money that goes to helping children.
In its first year, Mary's Fund has raised about $500,000.