The mansion that Bin Laden was hiding in sounds like quite a fortress; Eight times bigger than any house in the area, at the end of a long road, 12-15 foot high concrete walls topped with barbed wire, two security gates, very few windows on the ground floor. But there were clues - trash was burned daily, the house had no phone or Internet connection, the couriers who moved in and out of the compound ad no known source of income..
The Navy SEALS required 40 minutes for the operation; Osama, one of Osama's sons, two other male adults, and a woman who was used as a human shield was killed. Osama did engage the operatives and fired on them. No operatives were lost, one helicopter was lost due to mechanical failure and was summarily self-destructed on-site.