It seems to me that the guy was caught out with the weather
Elected to try Battersea in conditions that were not suitable for VFR flying
it wasnt a safe option at that time of the day in those conditions
Doing a mix of VFR/IFR in this case was very stupid and caused the death of 2 people, one innocent pedestrian who had a very unfortunate end
The lighting of the crane wont be a factor as in daytime these red lights in mist are not effective, maybe powerful white strobes better
Lets keep the skies above London safe no cowboy activity
How do you mix VFR and IFR in this situation? Maybe VMC and IMC?
This pilot was highly respected and in no way could he be classified as a Cowboy! I agree with Red Lights being insufficient in the day but high intensity are a must on this particular building being so close to aircraft routes into a busy Heliport.