Re: I think the cyclist is at fault.
"The trouble with "lane splitting" is that it is only legal in the UK "if it is safe", but it never is. If the surrounding traffic is stationery then you have no where to go to, and if the traffic is moving then (as others have already said) you _have_ to assume that the other vehicles are about to change lanes."
If traffic is stationary, there is still space between the lanes for a bike to pass through at a very low speed (20km/h or less). If a car is in the way, slow down or stop, but very often cars will move out of the way to allow a bike to lane-split. Even in stationary traffic, cars usually have space to manoevre a little bit.
In slow-moving traffic, bikes can generally safely do up to 20km/h faster than surrounding traffic. In this type of traffic it is stupid for a car to try and change lane, and people changing lanes most probably won't go any faster in the new lane, and are just slowing the already slo traffic.
In any case, bikers should be paying attention to everything hapening around them, and leave themselves room to manuevre, particularly so when lanesplitting. Keep in mind also that bikes generally can accelerate, brake and change direction much faster than a car, so as long as a biker is payng attention they can usually twist their way out.
In this particular case, I can't comment on fault or blame without knowing very exact details, but it is quite likely that both car and biker could have acted differently to avoid collision.
All the above based on >> 20 years' experience on 2 and 4 wheels