43 year-old Malian national Alhassane Ould Mohamed (a.k.a. Cheibani) was arrested by French forces in Mali. A federal arrest warrant was issued for Mohamed on September 13 for the murder of Bultemeier and the attempted murder of a second Embassy officer.
The FBI's wanted poster of Mohamed describes the basis for the warrant. On December 22, 2010, Bultemeier and his colleague were attacked as they approached Bultemeier's diplomatic vehicle. Mohamed allegedly shot and killed Bultemeier, and then took his car keys. Mohamed's accomplice shot and wounded the second Embassy officer. The attackers then drove away in the stolen diplomatic vehicle.
Mohamed was originally arrested for the murder three days later, but escaped custody in 2002. He was then arrested in 2010 for the murder of four Saudi Arabian nationals, and sentenced to 20 years in prison, but escaped prison on June 1, 2013.