Now look at Towner at the
exact same time (thanks to the expert sync-up by Mr. Davidson!):

We see Ms. Ruth Dean in blue, just where we'd expect to see her: just east of the center rail.
But of Mr. Lovelady's head, red shirt, white tshirt-------------
which we know from the simultaneous Bell to be in full sunlight just west/behind/above her
--------------we are shown NOTHING. He has been completely blacked out.
Why? Those who blacked him out figured that no one would buy the ridiculous idea that Mr. Lovelady suddenly teleported himself up, back and across from 'his' Hughes position (on the fourth step up, far west and right behind the black man on the second step) to his Towner position in just a couple of seconds. Much better to pretend that he only moved up, back and across in the more generous allowance of seconds offered between Towner and Altgens.
Therefore: Mr. Oswald (albeit a decapitated Mr. Oswald) is left in in Towner, to deputize for the blacked-out Mr. Lovelady:
