Westgate Mall

Relatives of those who died lay white roses and pray at a stone memorial, during a memorial service marking the one-month anniversary of the Sept. 21 Westgate Mall terrorist attack, in Karura Forest in Nairobi, Kenya Monday, Oct. 21, 2013. Families and friends of those killed in the attack planted trees in memory of lost loved ones in a ceremony that stressed that the attack occurred against people of all races and religions.

Ben Curtis/AP

Relatives of those who died lay white roses and pray at a stone memorial during a service on Monday marking the one-month anniversary of the Westgate Mall terrorist attack, in Nairobi, Kenya. Families and friends of those killed planted trees in memory of lost loved ones in a ceremony that stressed the attack occurred against people of all races and religions.

Kenya security forces are seen behind a wall outside the Westgate Mall in Nairobi, Kenya Monday morning, Sept. 23, 2013. Kenya's military launched a major operation at the upscale Nairobi mall and said it had rescued "most" of the hostages being held captive by al-Qaida-linked militants during the standoff that killed at least 68 people and injured 175.

Jerome Delay/AP

Members of Kenya’s security forces crouch behind a wall outside the Westgate Mall in the capital, Nairobi, on Monday morning. The country’s military, which has launched a major operation at the upscale Nairobi mall, said it had rescued “most” of the hostages being held captive by al-Qaida-linked militants during the standoff that killed at least 68 people and injured 175.