BY LINDSAY WHITEHURST AND SAM METZ Updated 6:55 PM PDT, August 9, 2023 PROVO, Utah (AP) — An armed Utah man accused of making violent threats against President Joe Biden was shot and killed by FBI agents hours before the president landed in the state Wednesday, authorities said. Special agents were trying to serve a warrant on the home of Craig Deleeuw Robertson in Provo, south of Salt Lake City, when the shooting happened at 6:15 a.m., the FBI said in a statement. Robertson was armed at the time of the shooting, according to two law enforcement sources who spoke to The Associated Press on the condition of anonymity to discuss details of an ongoing…