Dallas victim's heartbreaking words before he left for work

Heidi and Mike Smith were living the American Dream. She's a teacher; he was a police officer.On Thursday Heidi's worst nightmare came true."The hospital chaplain put his hand out to me. And I knew," she said.Sgt. Mike Smith was dead. Before he went to work, without fail, Mike always said goodbye to his daughters Victoria and Caroline."I would always at least give him a hug before he left," Victoria said.But on Thursday, something was different.Caroline recalled, "He said to me, 'What if this is