amendment guy, but has called for more stringent background checks for gun buyers, all positions that trump and moore have seized on and wh-- >> i don't think he's done a good job of coming out and saying this is what i stand for. clearly i think what he believes and his campaign believes he needs to do is sit back and hope that roy moore implodes. i think as we get closer to election day, that's probably not going to be enough. >> reporter: alex marquardt, cnn, birmingham, alabama. new developments in the investigation into a string of killings in florida. four people in tampa were shot to death separately in the past month and a half. the shootings all happened less than a mile from each other. police now plan to charge a suspect. they arrested a 24-year-old man after he brought a gun to a mcdonald's fast food restaurant. the four victims were killed but not robbed while waiting at a