A court in Tegucigalpa found seven men guilty of murdering indigenous environmental activist Berta Caceres on Thursday.
Two of the men worked for the construction firm Desarrollos Energeticos that built the Agua Zarca Dam, against which Caceres was fighting.
"Half justice is not justice, the true authors must be punished, those who sent and paid murderers," the activist's mother Bertha Flores said.
Berta Caceres was shot dead at her residence on March 2, 2016. She was spearheading a campaign against the Agua Zarca Dam, a project being built by Desarrollos Energeticos on Rio Gualcarque. The river is sacred to Berta Caceres's Lenca people.
Her grassroots campaign against the dam won her the Goldman Environmental Prize in 2015.