Sophie Reeder was 15 years old, and that video is the last known image of her on May 20th, 2017 — the day she disappeared.

Sophie Reeder, 15, was last seen on security video walking along a Fort Lauderdale boulevard at 2:16 a.m. on May 20, 2017. Sophie Reeder, then just 15 years old, had marked May 19, 2017 with an “X” on ...