The Marriott is a popular place for foreigners to stay and a prominent enterprise in the city, despite a wave of violence the country suffers. The hotel had been victim of another attack in January 2007 where a security guard was killed and several people injured after the guard blocked a bomber from getting at the hotel, forcing him to detonate his explosives where he was.
The bomber worked independently 
( z1 work :ARG0 ( z2 aircraft :ARG0-of ( z3 bomb ) ) :manner ( z4 depend :polarity - ) )