We traced a phone inside the Capitol to Mr. Vincent’s home in Kentucky. Confirming his identity led us to his Facebook page, where we found a few photos of him standing on the steps of the building during the siege. Another photo shows a crowd standing in front of the Capitol, its doors wide open.

“Yes we got inside. One girl was shot by the DC cops as she was knocking on the glass. She probably will die. We stopped the voting in the house,” he wrote.

Shortly after he posted the photos, Mr. Vincent, a pest control business owner in Kentucky who goes by the nickname Ole Woodsman, took them down. When we reached him by phone, he insisted he never entered the Capitol.

“There is no way that my phone shows me in there,” he said. Yet it did.