Joe Biden attacked President Donald Trump on Saturday over a report that he said, if true, contains a “truly shocking revelation” about the commander in chief and his failure to protect U.S. troops in Afghanistan and stand up to Russia.

Police scoured a Fedex facility in Indianapolis and searched the gunman’s home Friday, looking for a motive for the latest mass shooting to rock the U.S., as family members of the eight victims spent agonizing hours awaiting word on their loved ones.