Death Closes the Case — C.D. Moulton

I wrote a final book in the series and was asked to write another by several people. This is it, and is the final book in the series. A group is trying to steal the Indio land. There is little time to stop them as Clint has a brain tumor. If he has to walk up to them on the street and blow their brains out, so be it! He hopes there's another way.