Oh, yes indeed your son is patient!
When kitty recovered I firmly told son we weren't keeping him and I heard "GOOD" loud and clear from the back of the house. So the 2 adults are in agreement, yet here the kitten is.

I thought I saw the mother this morning so I ran to the house, grabbed kitty and ran outside telling it "Cry! Cry!" but it wouldn't. It was probably another stray I saw anyway. Wishful thinking on my part.
Our cat is from the same mother but from last years litter. I adopted out his siblings. Next batch we found we left them for her to raise as mousers. Haven't seen those 2 around either, so coyotes must have gotten them, too. Cuddled them once for a few minutes before letting them go & son ended up with ring worm & I got pink eye.

This is the 3rd batch we know of in 2 years but we couldn't catch the mother to fix her. I think a coyote finally got her and the 3 other kitties in the last litter.
I'd definitely rather have coyotes than cougars. A few mountains from us there is a pet food factory that attracts cougars. We worked there nights for a short time and caught one in our headlights near the buildings. I refused to walk between buildings that night.
The cat lady in your area has created a free buffet for the cougar. I doubt he'll leave. I hope someone gets him before the woman is hurt.