Jennifer Lynn Blackstock, 17, was last seen on Thursday at about 11 p.m., according to a news release from the Police Department. Blackstock's family said she left her Edmonds home without permission.

"It is concerning that Jennifer left without money or personal belongings for an extended leave," the news release said. "Furthermore, it does not appear that she has made use of the various social media she typically relies on."

What joy would be felt by the family if updates and fresh posts were to appear on her Facebook or Twitter account. A new kind of joy comes with a new way to confirm that someone is really missing.