This installment of “What’s Your KCQ” is a story of gambling, gangsters, and geography. Reader William Renegar wanted to know, “Was there once a gambling establishment on Southwest Boulevard on the state line that was part in Kansas and part in Missouri?” There’s a story in his family about a relative, Fred Renegar, who supposedly ran a saloon on the state line before he was killed by the mob over an unsettled debt. His murder was never solved. William Renegar wondered if there was any truth to it. Our findings indicate: Yes, it’s all true.