Yes he totally looks like the video and I feel like he would sound like the audio. But not the second sketch! Although apparently BG could be a mix of both sketches....don't have the link, but Carter said that.....maybe LE is not 100% sure what sketch is right or if there were disguises involved?
Assuming those Facebook messages were true and not photoshopped, I found it very suspicious that he brought up the Delphi murders first. Not to mention again at the end.
I wonder if he did feel remorse over killing the girls (if he did) - like it wasn't the plan, he just wanted to rape one/both, but they got out of control. He didn't kill this other girl and actually drove her back, which seems odd to me - kind of like he was trying to make up for what happened in Delphi?
Just random thoughts, I don't feel strongly about him, but he is interesting!
If it does turn out to be him, that April PC was a mess!