I note the charge is aggravated assault, not attempted murder, and I can imagine it being further downgraded. Keahey says he can't remember much of the incident, and his attacker Johnson claims he can't, either, despite not appearing to have suffered any injuries.
I hope Keahey was able to keep a record of their chat on the MeetMe phone app, because I can see this becoming a he-said/he-said case. Was it the older Keahey who was preying on the young, 18-year-old Johnson, coming over to impose unwilling sex on this naive boy? Was the boy merely legitimately defending himself against a threatening sexual aggressor? Did Johnson have a gay panic attack, why things escalated and his memory is spotty, a defense that might still work in Texas?
I simply don't know, but I'd be surprised if Johnson's defense attorneys didn't take that line, and a Texas jury was willing to believe it. Without witnesses & evidence to the contrary, who's to be believed? A gay guy or an allegedly straight guy?
And the takeaway from this for other gays is to be wary of hook-up apps, and meeting strangers under these circumstances. Going into a stranger's house alone, without any lifelines, is a very risky proposition. Plus nothing says even gay guys can't be murderous psychos.