If he really had been unaware, I don't think it would take him more than a couple of minutes to figure it out.
"Somebody out there is tweeting out your deepest, most intimate thoughts, following your child, and defending your choice of dress shirts--do you have any idea who this could be???"
"Somebody out there is tweeting out your deepest, most intimate thoughts, following your child, and defending your choice of dress shirts--do you have any idea who this could be???"