As KETV reports, John Francavilla from the La Vista Police Department said Thursday morning the investigators are not ruling out various possibilities for the boyвЂ™s disappearance. In the two days since, authorities have indicated growing concern for the boy who has been missing for well over four days. READ MORE: Autistic boy missing after walking out of elementary school might be playing вЂhide and seek,вЂ™ police say вЂњHeвЂ™s playing the ultimate game of hide and seek on us now and heвЂ™s winning,вЂќ Kinsey said the news conference. He also said that LarsenвЂ™s YouTube search history included the phrases, вЂњhiding undergroundвЂќ and вЂњhiding from police.вЂќ Jeremy Kinsey said at a news conference that Larsen is very high-functioning, and has a history of hiding and running away.

Larsen has not been seen or heard from since then, and investigators appear to be considering additional possibilities, after previously saying they believed Larsen was intentionally hiding. He is believed to have slipped out during a classroom change. The FBI has joined the search for a missing autistic boy who has not been seen since walking out of school Monday afternoon.ДЄs CrimeOnline previously reported, 11-year-old Ryan Larsen was last seen around midday Monday at school in La Vista, Nebraska.

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