BENGHAZI, Libya — An Egyptian Christian shot in the head by a suspected Islamic extremist in Libya on March 2 has succumbed to his injuries, family members said. Salama Fawzy Tobia, 23, died March 15 in El Raey El Saleh Hospital in Samalut, Minya Province.  His family had transported Tobia back to Egypt after the Egyptian government, on a doctor’s…