(The dishonest tweet above has now been deleted by Posobiec.)
Two important things to realize:
The guy who posted the "CNN wrestling" video retweeted by Donald Trump ("HanAssholeSolo") is not a "15-year old member of the LGBT community." He's a 37-year old man. This outright lie was invented by Posobiec.
The Reddit user only "apologized" after CNN found out who he was and contacted him. The "apology" was very obviously inspired by fear that his identity was about to be revealed.