The shooting and death of Atatiana Jefferson at the hands of a police officer in Fort Worth — mere weeks after Amber Guyger's murder conviction for killing Botham Jean in Dallas — is highlighting the role fear and racial stereotypes often play in police officers' decision to use lethal force. Also, two years have passed since the mass shooting on the Las Vegas Strip left 58 people dead and hundreds wounded. Host Tonya Mosley speaks with head coroner for Clark County, Nevada, about how coroners face the trauma of mass shootings.