Only Iran and US Apply Death Penalty to Under-18s
"Iran is the only other state [besides the USA] to persist in imposing the death penalty on convicts who carry out their crimes under the age of 18. Twenty-two US states still allow juvenile executions although only seven have carried them out in recent decades."

Only Iran and US Apply Death Penalty to Under-18s
"Iran is the only other state [besides the USA] to persist in imposing the death penalty on convicts who carry out their crimes under the age of 18. Twenty-two US states still allow juvenile executions although only seven have carried them out in recent decades."