The focal lengths are most likely longer or shorter, the lenses and camera used are of different manufacture, the distance at which they are taken are either longer or shorter and the angle is at least a step to the left or right and some inches up or down from the old angle.

The ear, which itself protudes at an angle, is offset by about several inches to the right and another several to the back, creating a complex 3-dimensional surface.

It's remarkable how the contour of the face matches despite the ear's slight mismatch. If the ear is different, what's probably more important is the position of the ear.

I'd be inclined to think it was him but I'm no facial recognition expert. But here's hoping he is alive!