Transcript for Biden's Emotions on Display at 9/11 Memorial and During Stephen Colbert Interview
investigators are questioning a person of interest in those freeway shootings. Authorities telling ABC news I T was motha Anderon T taken into custody in a dramatic scene just two miles from I-10, the sit 8 of the 11 shootings. All we could see was cops coming in. Cops right there. Reporter: Witnesses telling us that several police cars surrounded a white tahoe, but this truck was one of them. Police saying there were several undercover officers involved in this operation. The white tahoe driven away from the scene by a trooper. The mother, quickly released. This commust responders and their families. Grief he knows all too well. What people don't understand, anniversaries are bittersweet. Man, it all comes back. Reporter: A vice president, a father, still mourning his son beau, who died in may of brain cancer. We have what most people long for. The love and the memory that is so cherished and so profound that it makes every other thing in our life worth doing. Reporter: Even as he considers a run for the white house, his own sadness on full display last night on "The late Show with Stephen Colbert." He had this enormous sense of empathy. I'm not making this up. I know I maybe sound like a father, I hope I -- anyway, but, but -- It sounds like you love him, sir. Oh, geez. I mean, I, uh -- Reporter: A sharp contrast from just days earlier. Biden looking like a candidate. But now he's not so sure. I'd be lying, if I said that I knew I was there. So, vice president not ready either way. And Rick Perry, no longer in. He struggled from the beginning with polling and fund-raising. Last month, he ran out of money. The republican campaign down to 16 people. He's the first to drop out. Thanks. We turn overseas to Saudi Arabia.
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