Gates’ neighbors — who were stunned that he would go Greek so late in life — said he has two teenage kids.

“A hazing incident? Do you know how old he is?” said one neighbor, who asked not to be named.

“Maybe it’s about nostalgia or something. He’s a strong guy, physically, so I’m not sure what that is all about.”

It wasn’t immediately clear why the victim was pledging or whether the group was linked to a specific college.