Mar-a-Lago evidence suggests possible Trump obstruction, people familiar say - The Washington Post

In the classified documents case, federal investigators have gathered new and significant evidence that after the subpoena was delivered, Trump looked through the contents of some of the boxes of documents in his home, apparently out of a desire to keep certain things in his possession, the people familiar with the investigation said.
 

Investigators now suspect, based on witness statements, security camera footage, and other documentary evidence, that boxes including classified material were moved from a Mar-a-Lago storage area after the subpoena was served, and that Trump personally examined at least some of those boxes, these people said. While Trump's team returned some documents with classified markings in response to the subpoena, a later FBI search found more than 100 additional classified items that had not been turned over…
https://www.washingtonpost.com/national-security/2023/04/02/trump-mar-a-lago-obstruction-classified/