By Gianluca Mezzofiore:  A 16-year-old Eritrean migrant who escaped captivity under the Islamic State (Isis) in Libya has exclusively told IBTimes UK that the jihadists forced him to watch the beheading and shooting of Eritrean and Ethiopian Christians.  Nael Goitom fled IS captivity along with four other Eritreans minors on 7 April after the extremists decided to move their Libyan camp in the desert to get away from fighting in the area.  Read More…