Like Annie, this has taken several reads through to process and be ready to respond... and I have nothing insightful to add... only how dreadfully I feel for you and all those involved...

We had the death of a member in our club earlier this year, caused by bikes colliding, no car involved... by boy is it hard to process something like this.

Definately seek a counsellor, it can really help to have somebody who is outside the situation to unload on...

My thoughts are with you, as are so many from here at TE.