Experts from Johns Hopkins University said the mass shootings in Uvalde, Texas, Buffalo and Tulsa, Oklahoma, show a gun violence crisis exists in this country. Johns Hopkins experts gathered virtually to talk about effective gun laws, how to protect children in schools and examine what the public wants its gun laws to look like.Odis Johnson, the executive director of the Johns Hopkins Center for Safe and Healthy Schools, said this year alone police have responded to 34 school shootings in the United States. "The best way to secure schools is to make sure that students feel respected, valued, have staff who approach them with trauma-informed strategies and to make sure they feel connected and affirmed, and this will lead students to internalize pro-social behaviors toward greater self-regulation," Johnson said.Daniel Webster, co-director of the Johns Hopkins Center for Gun Violence Solutions, said laws that make it easy to carry concealed firearms outside the home can increase violent crime."It's well known that weaknesses in federal and state laws can facilitate gun trafficking. Once states extend background checks to private transfers, gun trafficking is reduced," Webster said.Cassandra Crifasi, a researcher at the Center for Gun Violence Solutions, said the panel there is a renewed focus on minimum age laws after two 18-year-olds used semi-automatic rifles in school mass shootings."Two-thirds of Americans -- including more than half of gun owners and Republicans -- think people under the age of 21 should not be able to have a gun. There's even greater support for someone who wants to buy a semiautomatic rifle to be at least 21," Crifasi said.Josh Horwitz, of Center for Gun Violence Solutions, said something needs to be done to keep children safe."The ability for someone who's just turned 18 to buy a semiautomatic assault weapon and 16 rounds of ammunition is a threat to our public safety, our children and our democracy. This is a moment to do all of what we've heard because we love our children. We need to safeguard our democracy and we need to get something done," Horwitz said.The panel also stressed that people need to make sure they have safe and secured firearm storage, that there is community violence intervention and mental health access in schools.Watch the video above for the full story.