Cecilia was so tiny that even with her black hair piled atop her head, she could stand under Leo’s outstretched arm.

There are few people who can give details about what happened to Leo’s second marriage. It lasted only a few years, and Cecilia returned to Costa Rica. She divorced Leo.

THINGS FALL APART

In the spring of 1986, Karen began to dabble in prescription drugs, thinking that she was in no danger of sliding back into addiction. She told herself that amphetamines and tranquilizers couldn’t hook her the way heroin had. When Tom found out, he was very concerned and they argued. She had gone through hell getting straight,...