A subsequent investigation indicated that Rafiqullah had carried out the fragging due to his irritation and unhappiness over being denied leave to travel home during Eid al-Fitr.

Greene's body was flown back to the United States, arriving at Dover Air Force Base in Delaware on August 7, 2014.

[3][12] He grew up in Schenectady, New York[13] graduated from Guilderland High School in 1977,[14] and from Rensselaer Polytechnic Institute (RPI) with a bachelor's degree in materials engineering in 1980.

[1][6] Greene's military education included the Engineer Officer Basic and Advanced Courses, and the United States Army Command and General Staff College.

On August 5, 2014, Greene died in a fragging incident after being shot by an Afghan soldier with an M16 rifle at Camp Qargha's Marshal Fahim National Defense University in Kabul, Afghanistan.

[23] The Afghan National Army MP, identified as Rafiqullah, began firing from his barracks room window on Greene and about 90 other U.S. and coalition forces who were visiting the university.

On September 25, 2015, the nine British servicemen acting as the Close Protection Team for the group were awarded the US Army Commendation Medal for their heroism in saving the lives of many others.

[31] Greene was married to Sue Myers, a doctor[32] and retired colonel who worked as a professor at the U.S. Army War College in Carlisle, Pennsylvania.