His name is Glenn Green and police say he is the country's most dangerous stalker.
OPINION: Now it seems he's interested in stalking me.
I had heard of Green (he also goes by other surnames: Carlionne, Goldberg, Holden and Colcord) and have read a bit about him.
He's a nasty leach - a manipulative piece of work. So imagine my surprise when I received a hand-written letter from him in Mt Eden prison.
Green has 201 convictions, spanning 27 years, and he's spent years in and out of prison.
He has been jailed 45 times and apparently suffers from erotomania - believing someone, usually a stranger or high-profile person, is in love with them (gulp).
In the past he's pursued women in Auckland and Christchurch. He even targeted a female health professional who treated him in prison.
Green usually becomes fixated on women he sees in the street or in magazines and harasses them by writing abusive and frightening letters and text messages, calling them and sitting outside their homes. Scary stuff.
His long list of victims have had to change addresses and phone numbers to escape his attention. He is clearly high-risk and to say he's a menace or pest is an understatement.
He is a lonely, isolated man who, when not in prison, is harassing women whether he's on bail or not.
So I wasn't sure how to take the letter he sent me this week.
As a journalist you get the odd letter from criminals inside. They're all innocent and shouldn't be in there, they say. It's always someone else's fault.
Green says he wants me to tell his story. Yup, he's another one of these wrongly maligned criminals apparently.
Green started his letter by saying: "You may recognise my name as over the years I have had some pretty bad press titled ‘STALKER'.
"I come to you as you seem to be pretty fair and not one-sided."
He continues, "I have declined interviews but I think it is time to tell all and the truth behind the headlines."
So he's offering me his story but he's in custody, so how on earth am I meant to tell it?
He wants me to make contact and suggests I come to see him in prison.
He promises me all sorts of scoops on serving police officers.
"I'll give you the full story," he says.
"It's time to get the truth behind the stalker headlines out there because it's not right."
Clearly he's forgotten about his 201 convictions. I haven't.
He's re-offended 100 times, counting only the times he was on bail. Prison hasn't stopped him from offending according to police, who say when he's released he just starts targeting new potential victims.
He finishes his letter to me by saying, "I have done wrong but not what's reported. If you want to talk, I'm . . . at Mt Eden."
I must say when I read his letter he sounded reasonably convincing and articulate.
But as I asked a few people who had dealt with him they told me that's exactly what he is like.
He convinces you at the start that he is normal - that everything is OK.
He even comes across as reasonably smart and credible.
I realised pretty quickly I was inside the mind of a serial stalker.
I was still fascinated. Given he has previously stalked women, perhaps I could contact him and get his story and move on.
No, said the experts. He won't move on. He will think you're his friend. He'll never let go, they all warned.
He'll target you and your family for as long as he can.
So I won't be popping off to Mt Eden to make the introduction.
Some might say that writing about Green today risks feeding his ego and stoking his interest in me. But I'm writing this because it's important that the authorities, and his former victims, know that even being in prison isn't enough to stop his antics.
The law looks inadequate when it comes to this stalker. This man needs his own law so we can keep him behind bars. Otherwise he'll be out soon and successive jail terms haven't deterred him.
Let's hope I don't hear from him again.