system
Given the following post, respond as if you're commenting on Reddit:
human
[Iron Giant] What would have happened to Agent Kent Mansley? Where is he now?

He wasn't killed, but was instead arrested.

Where is he now?
gpt
Well, he's been deceased since the early 2000's, but after spending some time in jail, his sentence was quietly commuted by the Nixon Administration for reasons still unknown. 
After being released, he became a born-again Evangelical Christian activist, and helped lead the charge during the rise of the American Religious Right in the 70's and 80's, staunchly supporting Ronald Reagan's campaigns and promoting moral hysteria during the Satanic Panic. He became a friend of Jack Chick's at one point, and rubbed shoulders with all the big-name town mouses, quack psychiatrists, and moral guardians of that era. 
Mansley refused to publicly speak of the Giant incident, and when journalists and critics would press him on it, he'd make threats of litigation. Kent Mansley's last public appearance was on a Televangelist talk-show in May of 2001, where he railed against the rise of Nu-Metal, claiming the genre was just as satanic and immoral as Industrial and Heavy Metal. 

He died of acute liver failure in August of 2001, wherein the public became aware of his well-hidden alcoholism that he had struggled with since the late 1970's.