OK...Is it possible to graduate from junior high school here and dispense with the impiety?
If folks here are inclined to believe that Oswald was a jerk [like they really knew him and hung out with him] this would still be immaterial to the facts. Any motive involved with these facts is pure guess work.
A word about landladys.... I've had my experiences with them and they all went south for me. One was a snoop entering the place [for no other reason than to poke around] while I was gone to work. Another was completely batty and would knock on the door in the middle of the night to voice various complaints. Ultimately I discovered the joy of owning my own home

Fibers from that shirt were found on C399
Nah.
Also...why would Oswald lie about changing his shirt?