Gun Safety-Certified was conceived by Manuel and Patricia Oliver in response to their son Joaquinâs tragic murder at Marjory Stoneman Douglas High School on February 14, 2018. It is a partnership founded by Change the Ref (CTR), Stop Handgun Violence (SHV) and others, with the purpose of reducing gun violence by working with individuals and corporations to exert financial pressure on U.S. Senators and Representatives to work toward sensible gun law reform.