In keeping with a long tradition for the winner at Texas, Busch received a cowboy hat and got to fire trophy six-shooters loaded with blanks in Victory Lane.
Busch didn't get a rifle or shotgun for his qualifying run Friday like the other fastest Cup qualifiers had gotten since 2005. But track president Eddie Gossage said Saturday that was because there wasn't a sponsor for that award this year.
It was the second time this season, and a NASCAR-record seventh time in his career, that Busch won Cup and Nationwide races in the same weekend. He was the pole sitter Saturday night, and won the Nationwide race Friday night on the 11/2-mile, high-banked track.
Truex was trying to win for the first time since June 2007, but his winless streak reached 210 races when he finished a half-second behind Busch.
"Debris huh????" Truex posted on Twitter about the caution that cost him the lead.
During Saturday's race, a 42-year-old man died of a gunshot to the head in the infield, and on Sunday, the Tarrant County medical examiner's office said it was a suicide.
Fort Worth police said that Kirk Franklin died of a "self-inflicted injury" after arguing with other campers and that alcohol may have been a factor.
Alonso wins in China. Ferrari driver Fernando Alonso won the Formula One Chinese Grand Prix in Shanghai. Lotus' Kimi Raikkonen was second and Lewis Hamilton third.