East end man with luggage?

Over the past few months, I have noticed a man regularly posting walking along the greenbelt near Parkcenter, sometimes lying down in the shade. I have also seen him leaving the M&W market on Warm Springs. Without fail, he always has two black suitcases. I have noticed he sometimes sets them down and comes back a few minutes later.

I am wondering, does anyone know his story? He seems like a Boise regular, so I am interested. Hopefully none of this comes off as anything but genuine curiosity.