I don't get it, I thought the USA was a massive litigation centre and you could sue people for millions left right and centre? Are you saying that you can't sue people like that?
I believe tbastos believes that there is little chance the police will be punished. The kid absolutely will bring, and win, a lawsuit if the parent comment is true.
Police officers and prosecutors are immune from personal liability in a suit (the liability instead shifts onto the government). It is very often the case that gross misconduct that costs the government millions in damages will not result in any sort of punishment for the responsible official.