An injured man, Cheruiyot Baffin is assisted to get aboard a bus, taking the surviving students to their respective home counties at the Garissa military camp, in Garissa, Kenya, Saturday, April 4, 2015, after Al-Shabab gunmen rampaged through a university in northeastern Kenya at dawn Thursday, killing scores of people in the group's deadliest attack in the East African country, and leaving four militants killed by security forces. Somalia's Islamic extremist group al-Shabab on Saturday warned of more attacks in Kenya like the assault on Garissa University College in which 148 people were killed. (AP Photo) ( Kenya University Attack )