A violent gangster turns vigilante when his young son is murdered, but when he executes an undercover cop, his operation backfires.

This is an interesting story. I appreciate the process in this forum, to help writers work through their ideas.

I think the original was good.

Regarding the word "grooming" used in the later version, it didn't strike me as a negative, when I read it. I hope we get to read the script when you finish it!

Just change the ending, maybe you can write the entire logline in some similar form.

I HAVE to leave a positive review when I see a log line scenario that is intriguing AND... I believe not only COULD happen in real life but probably WILL eventually happen in real life. I love stories that seem utterly plausible, unique, and "inevitable", in other words. Since I cannot add anything substantive to the great comments posted before mine, I'll leave it at that. KUDOS!