Catalyst

Corinna Cass has taught for 30 years in Old Speck, Maine, and seems beloved and respected by all. Her husband is the most successful business man in the county, her sister is a U.S. Senator, and her boss has brought unprecedented grant money to their school. And then one morning she is found shot to death in her car. Lincoln McShea isn't a flashy sheriff, but he's an effective one. He's determined to solve the mystery, and soon finds himself unraveling secrets about the most prominent people in the county. As McShea and his deputies scramble to uncover the truth, one witness to Corinna's death remains undiscovered... and hopes to keep it that way.