Policy on firearms. this comes amid growing concerns over gun violence and untraceable ghost guns. mr. biden is expected to unveil new steps to make it harder to but choir these illegal guns. now back to dateline. back to dateline >> in the days after the murders, the lockharts, aunts, uncles, nephews and nieces were -- >> we lost three wonderful people that we loved, and we don't have them with us today. >> kim, bradley, jill, just like that, gone. >> gone. >> david was all but shutting down. >> i'm a mess, i'm on medication, i'm having to buy caskets, i'm having to buy burial plots. we have ...