Authorities in Honduras have arrested an energy company executive who allegedly orchestrated the 2016 murder of prominent environmental activist Berta Cáceres.
Police detained Roberto David Castillo as the perpetrator, who had previously served as CEO of a company with plans to construct a hydroelectric dam which Cáceres had actively campaigned against before her murder.
Two masked gunmen fatally shot the activist at her home in La Esperanza in March 2016.