Did Julie ever name this person?

In one of her podcast episodes, she mentioned a former WP cadet that was AIM messaging with Maura in the days leading up to her disappearance. She mentions that she did speak to him and he stated he never visited Maura at UMASS. She then showed him a picture, which presumably proved otherwise. At that point he stopped responding. I do not remember the episode but will start listening to all of them again.

Anyways, does anyone recall this and if a name was mentioned? Would save me a lot of time.