Find the right ending to this passage.

(CNN) -- Joseph Mathenge hadn't planned to be at Westgate Mall in Nairobi, Kenya in September 2013, when gunmen -- now associated with Islamist terror group Al Shabaab -- infiltrated the shopping center and started shooting en masse in a blitz that resulted in 67 deaths. The Kenyan photojournalist, who last month won African Journalist of the Year at the 2014 CNN MultiChoice African Journalist Awards, was with his son, Geoff Kihote, en route to take photos at a wedding. Geoff had been diagnosed with bone cancer, and the assignment was to help pay for his treatment in India. It was at that moment that Mathenge got a call from a friend inside the mall.

"She was trapped in
Westgate Mall, held hostage by terrorists, and here is my son.