I'm surprised you're so upset over the driver and not the negligent pet owner. If you were aware that the cat wasn't being cared for properly, you should have either taken it in your own home or gotten animal control to pick it up and hopefully find it a home. By feeding the cat, you weren't exactly encouraging it not to roam, you were doing the opposite. Feeding it gave it more reason to roam, so it could be argued that you were contributing to the cat's demise. Take full responsibility for the pet, or make sure someone else does. Don't encourage strays (and every rodent in the area) to roam around your neighborhood by feeding them, then expect someone else to take care of shots, fixing the animals, etc.
How do you know that the person who hit the animal didn't turn it in? If you hit an animal, the right thing to do is turn it in so that it can be taken care of. Getting out of your car and grabbing an injured animal will usually end with you getting bitten.
How do you know that the person who hit the animal didn't turn it in? If you hit an animal, the right thing to do is turn it in so that it can be taken care of. Getting out of your car and grabbing an injured animal will usually end with you getting bitten.