I've never heard any CTer explain why they believe the DPD would have suppressed Oswald's wallet given its obvious probative value in linking Oswald to that crime.
I would have called it overkill.
A wedding ring left behind.
Money left on the dresser in yet another wallet?
A white jacket discarded 'en flight'?
Then oops a wallet flew out of a pants pocket?
Or maybe Oswald threw a wallet at Tippit as a coup d gras...take that you dumb cop!
Anyway that statement was seen in the comments section of that jfkfacts article...
Neil Hodges
April 21, 2014
Why would the Dallas PD cover up the fact that Oswald?s wallet was found at the scene of Tippit?s murder? Wouldn?t this evidence have clinched the case for Oswald killing one of their own?
Answer...
The case was already clinched enough.