If only J.K. Rowling had a time-turner handy. The author of the Harry Potter series seems to be facing a lot of regret lately — she tweeted an apology Saturday for killing off fan-favorite character Fred Weasley. Fred met his demise during the Battle of Hogwarts, killed by an explosion outside the Room of Requirement in Deathly Hallows. May 2 was the anniversary of the epic battle and his death, which left the Weasley family, including twin brother and best friend George, in shambles. And now, eight years later, J.K. Rowling is finally starting to accept responsibility for everyone’s grief-stricken childhood. The author plans to apologize for one death per anniversary, starting with a “sorry” for Fred.