No, its patrizio zamarripa, its brent thompson. Its mike krol. Its lorne ahrens. Look. Its michael smith. Reporter family members of the gunmen have become a central part of the investigation. Investigators have questioned the former Army Reservists family about a stockpile of bombmaking equipment in his home. Speaking for the first time, the mother said her son returned from service in afghanistan last year a changed man. The military was not what michael thought it would be. He was very disappointed. Reporter 170 hours of officer body cam video is being reviewed as part of the investigation. Don champion, cbs news, dallas, texas. Vice President Joe Biden and former president george w. Bush are also heading to dallas for todays service. And back at ucberkeley, students mourned two black men killed by Police Officers last week. Three of the slain Police Officers will be laid to rest this week. In the calm of San Franciscos grace cathedral, people stood side by side to pray and sing ove