Shaun accidents happen,sadly your mate died,but like ive said to lots of other people who have lost a freind or family member, you still have the memories of him , what you did together,etc.
Youll feel anger, hatred and that horrible sinking feeling, all perfectly natural after a bereavement,its time like this you need to talk not bottle things up,have a laugh and try to get on with your life,not easy and it takes a long time.
Been there and still living the sadness.
Also dont forget the poor Pedicab driver,perhaps a letter or phone call to their office to find out what happened and a bit of condolance to the driver.