3-year-old accidentally shoots and kills 1-year-old sibling with unsecured handgun in California home

A 3-year-old child accessed an unsecured handgun and fatally shot their 1-year-old sibling in Fallbrook, California.
The 1-year-old suffered a fatal head injury and was pronounced dead at a local hospital.
The shooting occurred Monday morning, and investigators are looking into the circumstances surrounding the tragedy.
There are no outstanding suspects, and authorities say there is no threat to the Fallbrook community.
The incident highlights concerns around proper firearm storage as unintentional shootings by children continue to occur in the U.S.