If he knew Patsy was dying, and he most likely did, that would explain his timing for trying to contact her. He wanted her to know. There wasn't much time left to continue the game, and he wanted to be a major part of the end of Patsy's life. I'm glad she never knew who he was. He's sitting back gloating because he thinks he's corresponding with Patsy. He thinks he has that last bit of control at the end of her life. It's great that it was a scam on him by the police. The only thing she knew was that there was a suspect that wanted to meet her. That didn't happen thank goodness, and now he knows that Patsy didn't even know his name.
Just think...see, we're calling her Patsy. The Media and even her family (in public anyway) are calling her Patsy. Then he goes on international TV and refers to her as "Patricia", several times. Talk about intruding into and trying to control the Ramseys' world...
My grandfather had an older sister who as the family's eldest child was made to feel she was "in charge" of her siblings when they were young.
Their whole lives she continued to act that way. She would barge into one of their homes uninvited and begin to "take control" of whatever was going on.
Here's what reminds me of this situation: My grandfather had a middle name that NO ONE in the family ever called him...it was a family name from the past and not the kind of name you'd want to go by...
But his elder sister called him by that middle name and was the only one in the family who ever did.
At a family gathering they would call out to him and say, Hey, Harv (Short for Harvey), but she would always say, now Griggs, what about this and what about that.
When my mom told me about that, I told her she was just trying to show him, and all the others, that SHE was in control.