Trivia: Doyle Lonnegan's limp was a result of Robert Shaw injuring his ankle. Rather than working around it, Shaw incorporated the limp into his performance.
Trivia: Producer Julia Phillips (died 2002) became the first female producer to win an Oscar for "Best Picture" for this film. The Oscar for "Best Picture" goes to the producers of the winning film since 1952. She shares the Oscar with fellow producers Tony Bill, and her then-husband Michael Phillips.
Trivia: Even though it sets the mood for the film, Scott Joplin's ragtime music was no longer popular during the 1930s.
Trivia: Although the movie was released in 1973, Robert Redford didn't actually see it until 2004, on the suggestion of his grandson.
Answer: He wanted to kill the man who swindled him out of his money. He didn't know it was Hooker. Same thing with the two hit men, they didn't know the hit woman was working the same hit.
Isn't one of the hit men who got Luther (and who would also know what Hooker looked like) the big tall security dude (on the train) for Lonnigan? I thought he was one of the black and white photos. Seems to me Lonnigan would eventually know that Hooker and Kelly were the same guy?