(Watson, IL) -- There’s a growing memorial on the lawn outside Willow Long’s home in Watson. The seven-year-old was found dead late Tuesday night after walking off from her home Sunday morning. Her mom had laid down with a headache when Willow disappeared. Her uncle, Justin Deryke, is suspected of killing the youngster. First-degree murder charges are expected to be filed against the 22-year-old later today. An autopsy will determine how Willow was killed. Her body was discovered near the Little Wabash River, south of Watson.