Marketing executive Arthur Sando tells THR about his lengthy debate with the conservative activist at The Brentwood; they said goodbye around 11:30 p.m., 50 minutes before Breitbart was pronounced dead. Andrew Breitbart spent his final hours much like he lived most of his life: passionately talking politics. Breibart, the 43-year-old conservative pundit and provocateur who died suddenly early Thursday while walking near his Los Angeles home, had stopped into The Brentwood, a nearby bar and restaurant. There, he struck up a conversation with Arthur Sando, a marketing executive who didn't know Breitbart but likely was the last person to talk...