What age was the dark-complected man seen at that window by Mr Rowland? "Fifty; possibly 55 or 60."
What age was Mr Williams? _________
What kind of shirt did Mr Rowland's man have on? "Had on a plaid shirt. I think it was red and green, very bright color, that is why I remember it."
What kind of shirt did Mr Williams have on? __________
Mr Rowland's man's hair? "bald or practically bald, very thin hair if he wasn't bald"
Mr Williams' hair? __________
Doesn't sound like Mr Williams to me. Sounds a
lot more like Mr Eddie Piper...

If not Mr Piper, then it must have been a member of the assassination team.