That picture right there should answer everything. The brick front is completely knocked in, and the floors collapsed. Meanwhile next door only the windows are broken? OK, show me the damage directly across the street. Hogwash that an RV across the street caused this.
BTW, my guess is that the guy was either tied up or unconscious. He was just the wrong sucker chosen for the scape goat. This has FBI/CIA/cabal written all over it in capital letters, and they aren't really even trying to cover up. A three year old would do a better job of lying.
BTW, this is an example why brick is a poor choice of exterior. People think it is extra protection from tornadoes. Baloney. The only extra protection is not having to paint your house. This is why most businesses pour a foot thick concrete exterior wall. That offers some real strength.