Yes, he's autistic. He's also named Ares, and he lives up to the name to the extent I once read a description of the god Ares out of a book and asked my dad(without telling him where the passage came from) to ask who this just described. "Well, your son, of course." His physical strength is quite impressive(he's moved my piano, and pulled me in a wagon while I was pregnant), but he can accomplish acts that other kids his age can't. Sometimes that is helpful, sometimes its detrimental.
My oldest one is also on the spectrum, more on the Asperger's end of things. He wasn't as destructive(at least not intentionally), but he wasn't/isn't always bodily aware, and tended to tear up furniture through his inability to sit. I remember him bouncing on a chair(not being aware he was bouncing) and falling right through the bottom of it.
The youngest is not on the spectrum(how weird for me!), but takes the cues of the 7 year old. He's easier to stop, though.