Mystery On Twin Lakes by Russell Warnberg

Chief Keplar, a small town chief of police and war veteran is confronted with a rare and unusual murder.  With a Minneaplis detective, they cross town and state lines in hot pursuit.  They soon find out this is more than a simple murder investigation.  Big money, big gambline and big trouble is found around every corner.

Meanwhile demons from his war experience haunt Keplar daily, but with the help of a young, charming reporter he begins to turn the corner.