Heartshot by Steven Havill

Septuagenarian undersheriff of Posadas County, N.M., Bill Gastner is widowed, his kids are grown and gone. A chronic insomniac, he rattles around his empty house, eats too much and smokes too much. The one thing he genuinely cares about is the little town of Posadas, New Mexico and its inhabitants. These days, he's worried that the newly elected Posadas sheriff has an agenda that includes pushing Bill towards early retirement and is understandably touchy about suggestions that he might be slowing down.

A Fourth of July town celebration turns to tragedy when a carful of teenagers speeds up to evade a police cruiser, loses control and goes over a cliff. While working the scene of the accident, Gastner and Posadas' lone detective, a female no less, Estelle Reyes, discover a package of drugs amongst the wreckage. How did it get there? Which one of the upstanding kids might have had something to do with drugs? Posadas is close enough to the Mexican border that Gastner is not surprised by the presence of drugs in his town, but thought he had a better understanding of the town's youth. Is he losing his touch?

The townspeople are naturally upset, accusations fly and one of the bereaved parents has bought a gun. When the Sheriff suggests putting a young unknown officer undercover in the high school, Gastner has no better idea and reluctantly agrees. The situation quickly deteriorates and another senseless death occurs. Gastner feels personally responsible, neglects his health in pursuit of answers and ultimately puts his own life on the line. We see him suffer from a mild heart attack during the investigation and his determination to see the case to the end, even if he doesn't make it.

I wasn't sure if I would like this book or the series as he seems like your stereotypical overweight police guy. I'm glad that I gave it more than a few chapters as it got quite good as it progressed. The author writes about a character who is very passionate about his town and the people who live there. It felt very believable, even though the ending was a bit out there. But a creative way to kill off people. I also appreciated that there was no romance between him and the only female detective on the force.

Now I want to read more and see how the character develops and hopefully makes some changes in his physical health. I'm glad that this is a big series so it gives me a chance to catch up.