Poisoned trees gave a wealthy couple in Maine a killer ocean view. Residents wonder, at what cost?

Suspicious deaths in an idyllic seaside community and detective work that points to poison sound like themes from a classic murder mystery. But the victims in this Maine whodunnit were trees that stood in the way of a wealthy family's oceanfront view, allegedly felled by well-heeled killers who, while ostracized and publicly shamed, remain free.