A PLAGUE OF SECRETS BY JOHN LESCROART
Softcover.
Book 13 of 19 in the Dismas Hardy series
When high-grade marijuana is found on a coffee-shop manager murdered in San Francisco, it suggests that the shop's owner, Maya Townshend, may be behind more than a caffeine fix. But when another murder exposes a drug-buying A-list celebrity and political clientele, a tabloid-fueled controversy takes the investigation into the realms of conspiracy and cover up.