Sarah Coakley and Idalia Torres Mora were perfect strangers when they lost their newborn sons within a day of each other three years ago. “As I was leaving the hospital, little did I know she was going in,” Coakley said. The ladies met a year later through a group meeting with Rock Goodbye Angel, a nonprofit organization for women and families suffering the loss of a child due to miscarriage, pregnancy loss or sudden infant death syndrome.