You can search Google for information and limit to results from a specific type of website, such as .gov or .edu. If you want to search for information about gun violence on government websites, you could search:
Be sure to include the dot [.] before the domain suffix [.gov or .edu or .org]. There are no spaces in site:.gov
Government and educational websites are more reliable than most .com or .org sites. Government websites are authoritative sources of information on every topic imaginable - employment, suicide rates, agriculture, immigration, crime and more. They are especially good for statistics.