Elementary: Terra Perioclosa

"Terra Pericolosa" is the sixth episode of season three of the crime drama/mystery series Elementary and the fifty-sixth episode of the series overall. It was directed by Ron Fortunato with a script written by Robert Hewitt Wolfe. It first aired on CBS on Thursday, December 4th, 2014 at 10:00 pm. In this episode, Sherlock Holmes investigates the murder of a New York City police officer, whom he finds was actually stealing arms and selling them to a weapons smuggler. He also learns that someone from his recovery group has been using his quotes on a personal web blog.