Robertson was also able to interview the sniper who killed Salihee by embedding with his unit.[1][9] The soldier had originally trained as a member of the special forces, becoming a sniper for the U.S. Army Rangers.[3] Leaving the army, he rejoined the National Guard after the 11 September 2001 terrorist attack.[8] According to the soldier, the intersection where Salihee was killed was a dangerous one for American soldiers, where one had been killed[3] or wounded[8] only the day before Salihee's death, prompting them to search the area the next morning.[3] The soldier stated that two cars approached their position, the second driven by Salihee, traveling "more than 20 miles an hour" and then swerving around the first car.[3] The soldier stated that he fired three warning shots, the first at 150 meters, while the car did not slow down, before firing the fatal shot at 20 or 30 meters.[3] The soldier expressed extreme remorse for his action, which he stated was driven by fear that Salihee might be a suicide bomber.[3] A U.S. Army investigation found that Salihee was killed under the rules of engagement.[8] The soldier was later imprisoned for alleged possession and distribution of drugs.[8]