Eric Hartley, who once worked for The Capital in Annapolis, Md., found the pink, card-sized envelope in his newsroom mailbox on Thursday. On the envelope was written “anonymous source” in the top-left corner with his name and the Pilot address in the middle. It was postmarked June 28, the day of the shooting in Annapolis.

The letter was turned over unopened to the Norfolk police.

Police told Hartley that the envelope contained an unsigned card along with a compact disc. Police did not indicate what was on the CD. The unsigned, store-bought congratulatory card said, “Smile, you’re on camera” and “It’s your big day. All eyes are on you,” Hartley said.