reporter: they arrest sad guy friday, a guy who boast to his friends he was involved with those 11 confirmed shootings. he wakes out of a convenience store. cops tracked his vehicle and took him into custody. he s not considered the prime suspect but has not been cleared either. 8 of the 11 shootings involved bullets. oars bbs or pellet guns. i would tell you at this point i m not ruling anything out. reporter: bottom line, eric, the investigation continues. martha: brand-new poll numbers show donald trump is very much at the front of the pack and many candidates are taking aim at him. louisiana governor bobby jindal