I also am reluctant to condemn the cyclist. When a cyclist dies in an accident against a car, the cyclist's version is never heard because, well, the cyclist is dead.

(This being said, I KNOW that many cyclists run red lights.)

In any case, I don't know about the UK, but here there's a fault that's called "failure to yield." No matter what sort of light you have in front of you, you should yield to any vehicle or pedestrian already engaged in the intersection, whether they have a right to be there or not. It also applies to bicyclists and pedestrians. It's really scary that a person would not looking ahead while driving through an intersection, no matter at what speed. Lots of tragedies would be avoided if drivers realized that they're carrying 1-2 tons of steel around them, and that they have the responsibility to be aware of their surroundings.