I got an e-mail the other day from Richard Engle telling me that his son Charlie would be getting out of prison this month. I was happy to hear it.

Charlie’s ordeal isn’t over yet, of course. When he leaves prison on June 20, Charlie, 49, will move temporarily to a halfway house, after which he will be on probation for another five years. And unless he can get the verdict overturned, he will have to spend the rest of his life with a felony on his record.

Perhaps you remember Charlie Engle. I wrote about him not long after he entered a minimum-security facility in Beaver, W.Va., 16 months ago. He’s the poor guy who went to jail for lying on a liar loan during the housing bubble.

There were two things about Charlie’s prosecution that really bothered me. First, he’d clearly been targeted by an agent of the Internal Revenue Service who seemed offended that Charlie was an ultramarathoner without a steady day job. The I.R.S. conducted “Dumpster dives” into his garbage and put a wire on a female undercover agent hoping to find some dirt on him. Unable to unearth any wrongdoing on his tax returns, the I.R.S. discovered he had taken out several subprime mortgages that didn’t require income verification. His income on one of them was wildly inflated. They don’t call them liar loans for nothing.