An American tourist, Marco Junipero Serra, told the BBC the person who had carried out the attack was dressed all in black and had his face covered with a mask.
Marco Junipero Serra, oo ah dalxiise Ameerikaan ah, ayaa waxa uu BBC-da u sheegay in qofka weerrarka fuliyay uu xirnaa dhar madow ah wajigana uu maasgaraati ku soo dabooshay.