Most of it is speculation.
I agree with you 100% in relation to the above comment direct.no.speed. Otherwise I agree with Will964.
Some facts:
The Piper was in process of landing and was on down wind leg - not taking off as media suggests.
HeraldSun.com.au has a graphic of the collision and whilst it is reversed it shows the likely impact sequence
LH wing of Cessna struck LH U/C and then LH tail of Cessna. Herald Sun graphic is way off.
why would anyone send out a student for his first solo
It wasn't his first solo in any event.
Di