efe-epaBy Patricia Martínez Nairobi

At exactly 3.28 pm on 15 January last year, 25-year-old Mahir Riziki blew himself up in front of the DusitD2 hotel in Nairobi.

Feisal Ahmed, 31, and Abdalla Dahir, 33, inseparable friends, were having lunch at that time. Both were killed in the attack but neither has been forgotten. EFE-EPA