a sorrowing widower managed to kidnap a kid by giving away free ice cream after 10 years of his daughter?s death

lol This one made me laugh, I don’t think that’s your intention though. Just because the initial description of the man makes him sound like a nice, old-man, then you have that he gives kids ice cream for free all in order to steal one of them. I do like this aspect in your logline, except it needs to be made more sinister, to help make clear this is in the crime genre.