Walt, you forcefully asserted that Day swore that he placed cellophane tape over the partial finger prints that he found on the trigger guard / magazine while examining the rifle in the TSBD at about 1:45 PM that afternoon. You were wrong. Just admit it and move on.
The question is:.... Did Lt Day use cellophane tape on the rifle while examining it in the TSBD that afternoon?
Tom Alyea is on record as having witnessed Lt. Day use cellophane tape while examining the rifle at about 2:00PM that afternoon.
Now, using the official tale....He could not have been using the cellophane tape on the so called "palm print" because he didn't discover that print until he disassembled the rifle in the Police lab that evening.
So, Now then, Ol wise one.... What prints could Day have been using the cellophane tape on at 2:00 pm as Tom Alyea watched??
PS...There is an good reasonable answer to this puzzle....