Head Wounds by Chris Knopf

I enjoyed this, I'll try another in the series. PW: Part-time carpenter, full-time drinker and co-conspirator with an existential mutt named Eddie Van Halen, Sam tries to lead the simple life. But as always, fate intervenes, this time in the form of Robbie Milhouser, a local builder and blundering bully who shares with Sam an irresistible attraction to the beautiful Amanda. When Robbie is murdered, Sam finds himself in the crosshairs of a very determined chief of police.