Aww, I'm sorry.
I lost my big beautiful orange tabby Gus who I raised from a kitten for 8 years last year the same way. It happened right in front of the driveway and my fiance and brother in law both saw it happen. I was devastated to say the least, he was extremely special.
Here he is, I miss him so much still.
The only thing I can say to help is that it will just take some time, as cliched as that sounds. Sometimes getting a new kitten or cat helps to cheer you up and take some of the pain away.
We adopted this big guy from the shelter.
Here's Oscar
He's a great cat and helped fill some if the void that Gussie left.
I agree the guy should have stopped to apologize at the very least. I'm so sorry your son had to see that. Try having a little memorial service for Chance it helps to have closure. And try not to feel guilty, I myself have lost other cats from letting them outdoors but accidents happen and I don't believe cats belong cooped up in a house. We had to keep them indoors for 9 months when we lived in on the 15th floor of an apartment, and the cats, and myself, went crazy. Kitties need to explore and stalk and hunt! It enriches their lives and keeps them happy.
RIP Chance, he was a beautiful boy, and I'm so sorry for your loss.

Here he is, I miss him so much still.

The only thing I can say to help is that it will just take some time, as cliched as that sounds. Sometimes getting a new kitten or cat helps to cheer you up and take some of the pain away.
We adopted this big guy from the shelter.
Here's Oscar

He's a great cat and helped fill some if the void that Gussie left.
I agree the guy should have stopped to apologize at the very least. I'm so sorry your son had to see that. Try having a little memorial service for Chance it helps to have closure. And try not to feel guilty, I myself have lost other cats from letting them outdoors but accidents happen and I don't believe cats belong cooped up in a house. We had to keep them indoors for 9 months when we lived in on the 15th floor of an apartment, and the cats, and myself, went crazy. Kitties need to explore and stalk and hunt! It enriches their lives and keeps them happy.
RIP Chance, he was a beautiful boy, and I'm so sorry for your loss.