'Who is that person?'

Fans of the '90s sitcom staple "Seinfeld" — and the comedy world at large — have been mourning the loss of beloved actor Jerry Stiller, who died last week at the age of 92. The pain of that loss obviously cut much deeper for Ben Stiller, the late performer's famous son, who says Jerry was nothing like the Festivus-celebrating firebrand that was Frank Costanza.