'memba in 1970-something, Richard runs into lil' old runaway-Ben, and when Ben's all like 'I saw my dead mum out here', Richard is all wide eyed and 'what? when? out here? you sure?'. Makes sense now we know about MIB/Monster/dead people. Go back and watch it and you'll see what I mean. He also looks especially freaked when Ben reveales his mum didn't die on the Island. Sumin' tells me he went running off to Richard right after this.