If the kid is clean and people are willing to speak well on his behalf, I say give him the chance. It's been 2 years and it seems he has kept his nose clean at least this year at the small baptist college. 1st thing I would do is drug test him before he signed anything. Don't warn him your going to test him, just do it. If he comes up clean, he is an impact player who could help us get to 7-8 wins and get CBJ 1st year off to a great start.
Just to play devil's advocate here; it's a hell of a lot easier to keep your nose clean in podunkville, USA when there's very little to do and fewer people watching--doesn't necessarily mean your on the straight and narrow, just means you're not getting caught.
If he signed here, he'd have all eyes on him--he'd basically have to be a choir boy. No late-nights, no fraternizing, no bar-hopping...he'd basically have to be Mother Teresa-esque.
That said....if those around him and those at Arkansas Baptist Bible Tech (or wherever he's at) can convince me that he's worth of another chance, I'd then sit him down and have some pretty blunt questions for him. If he convinced me that he wouldn't be a problem in the locker room or off the field, I'd have him sign an LOI right then and there.
...but only after all of that.
Point blank, Dyer could be the difference between 6 wins and 8 wins...assuming he's still got it. However, he could also be the difference between a good locker room and a poor one.
We don't need another Da'Rick running off at the mouth to coaches and leaders on the team. I'd make it clear there is a no-tolerance policy...if he's good with that, sign him up.