Costa Rican men convicted for killing conservationist and raping volunteers

Four of seven men accused sentenced to decades in prison for 2013 murder of Jairo Mora, who worked to protect sea turtles with four female volunteers

A Costa Rican court has sentenced four men to decades in prison for the 2013 murder of an environmentalist and the rape of four western female volunteers who were with him.

The judgment capped a nine-week retrial of seven men accused of killing Jairo Mora, a 26-year-old Costa Rican working to protect sea turtle nests on the country's Caribbean coast.