Jackson, Mississippi police have arrested a man in connection with the homicide of 29-year-old mother Tasia Fortune as her family continues searching for answers. In Florida, an emergency response unfolded at a St. Petersburg gas station after a suspect allegedly ignited fuel with a lighter and set a female stranger ablaze. Meanwhile in Louisiana, authorities have charged a man with four counts of first-degree murder following a devastating mass stabbing spree in Houma that left four relatives dead and a child critically injured. Sydney Silvagni reports.