Texas teen honors late dad with tearjerking graduation speech hours after his burial: Doing this 'for him'

A Texas high school valedictorian who delivered a tearjerking speech against the backdrop of burying his father earlier that morning said he summoned the strength to keep going as he looked out over the crowd and saw how his words had touched everyone.

"I didn't know if I even had the strength to do it. I was up there talking about my dad, and at any time I could have just I could have [stopped]. I wanted to stop, but I looked in the audience and I saw people listening to what I was saying and really taking it in and relating to me...