A Georgia Tech graduate student who set himself on fire while apparently experimenting with bomb-making elements in his apartment last month has died, officials confirmed Thursday. Saamer Akhshabi, an Iranian national, had burns on more than 90 percent of his body following the February 4 explosion in his apartment near the university, where Akhshabi was studying in the College of Computing. Law enforcement officials investigating the case found in Akhshabi's apartment an apparent Molotov Cocktail and multiple plastic bottles filled with gasoline and kerosene. Following the explosion, 26-year-old Akhshabi was taken in critical condition to Grady Memorial Hospital in Atlanta,...