The bomb was detonated at a security checkpoint during the morning rush hour.
The U.S. military in a statement confirms the strike and says the al-Shabab member had direct ties to al-Qaida.
James McMahon served 16 years in the Army's 75th Ranger Regiment and then later as a member of the elite Delta Force.
A U.S. service member was injured in a pair of targeted attacks by a terror group in Somalia this week.
Somalia's Islamic extremist rebels, al-Shabab, have claimed the responsibility for the attack.
Mark Bowden wrote the newspaper articles and book that inspired Ridley Scott's masterpiece war movie. He talked with us about...
A U.S. airstrike killed a senior leader of the extremist rebels of the Islamic State in Somalia group, officials said.
A U.S. Africa Command statement said the attack occurred in the Hiran region, where the earlier airstrikes took place.
The airstrike was carried out near an extremist camp near Shebeeley in the Hiran region north of the capital, Mogadishu.