Murder Is Secondary — Diane Weiner

Retired teacher Susan Wiles thought she'd be content spending her time knitting baby blankets and volunteering at the local high school, but she was dead wrong. When her husband's best friend, Tank, is accused of sexually harassing one of his students, Susan puts her sleuthing skills into action, much to the chagrin of her husband and police detective daughter. When a dead body is discovered in a construction site behind the school, the stakes quickly escalate. But before she can solve this new mystery and exonerate Tank, she finds herself dealing with personal and family issues that force her to realize that MURDER IS SECONDARY.