What kind of career path might be possible for a professor following a plagiarism scandal? Prior to transferring to another university, I attended a college in a different state with a renown reputation for integrity and academic rigor. The year before I left, I enrolled in a course that was taught by this new professor. It was the only 8:30 a.m. course that I eagerly woke up for- the professor would literally jump around the room, making the lessons lively and hilarious. He'd even devote the last 3-4 minutes of class to discussing some of the most insane industries around the world. I didn't enjoy my time at that college, but his classes were downright memorable. 

Outside of class, he was much calmer, but always with a warm smile and approach. People only spoke good things about him, and his respective department decided to hire him full-time, on a tenure-track position. 

The autumn after, I left that college and even switched majors. I kept in touch with a few individuals from that college, and one day, they told me to check out my old college's website. This professor was discovered to have plagiarized multiple papers. I won't get into the details, but the extent would make a slam-dunk case for blatancy. He no longer teaches. 

If you Google the professor's name, the first page or two will only show a massive plagiarism scandal. 

I tried reaching out to my former professor via email or Facebook, because for whatever reason, I feel bad for people going through rough times, even if they're severely at fault (contingent upon remorse, etc). There was (and still is) no contact information available, and after much time scouring the internet, I can't seem to locate any social media profile. It only then occurred to me how screwed up this person's future must be: never mind having a portion of your grad school wasted (although one could argue it was wasted when he plagiarized anyway), any background check on him will yield really unfavorable results. 

My question is: what does a person like that do from this point forward? Is academia pretty much a "no-go"? Does he count on connections in the industry? Does one change his or her name? I thought I'd ask here since several users here have had experience with plagiarism in one way or the other.

TL;DR A professor that I used to like got busted for plagiarism, and his name's all over the internet. Does someone like that have a second shot at academia? How would he go about getting into the workforce? ...etc
Past a certain point in their career and education, I think it's hard for somebody to ever clean off the stain of serious, prolonged, and deliberate misbehavior.  The more that a person has built up authority and trust on a false foundation, the harder it is to ever trust them with regards to that subject again.

When a young student engages in academic misbehavior, we treat it as a teaching moment.  When an undergraduate does it, we try to put fear into them and rehabilitate them.  When a graduate student does it, we try to figure out whether it is worth salvaging.  When a professor does it, it pretty much destroys their academic career.

And to my mind, I think that's OK.  We're talking about serious and deliberate professional malpractice that undermines the basis of the whole endeavor.  That can waste millions of dollars or leave people injured or killed.  Would you ever again trust a doctor who deliberately injured their patients, or an engineer who deliberately mis-designed a bridge so that it might collapse?  I think that it is the same for an academic who engages in massive and systematic fraud.