poor boy... too many are hit by cars.. (are you sure it was a boy- this is kitten season so a female could have been nursing and need you to find her babies nearby!) I trust your judgement on sexing the cat but had to put that out there for others who may not be so sure! It IS mating/kitten season (when isn't it?). Thank you for taking the time to give this boy your loving thoughts. Hopefully he did not suffer. Try not to think about it too much, there is nothing you can do for him now. (he is romping with all our others in the RB yes?) Been there, feel better soon!