The female witness also keeps calling the teenager a "little boy" but this article claims he was 6'3" so he was very tall. I don't think he looks that tall in any of the photos we have seen, though.
I think he only looks that tall in one - the one with the light colored hoodie - because he's preadolescent in the other pictures.
To me, he looks tall and lean in the one recent pic I've seen. Very handsome.