Okay, so he's new to the game. But he's 6-5 and 255 pounds as a high school senior, and a multi-sports participant who has been described as "athletic" for his size. He's also got good blood lines, with his dad being a former college player.
Seems as though he's got the requisite size / athleticism to play D1 football. The tools are there.
Given that he's only played 1 year of organized football, and in a non-hotbed [WNY], it's hard to know what his skill level is, whether he's got any technique, etc. Safe to assume, probably at the beginning stages of his learning curve, as a newcomer to the game.
Seems to me like this guy would project as a DT. He's got the height / frame to add bulk. And if he's an athlete, then he won't sacrifice mobility and lateral quickness.
Sounds like a good gamble, based upon athleticism. Doesn't mean he'll pan out.