Further speculation It's being called a 'Tourist' plane. Typically, these planes are large enough to accommodate 20 passenger/sightseers. So that would be a multiengine ship with enough mass to do considerable damage to a building. Additionally, tourist plans take off form small airstrips, WITHOUT security that now hinders hijackers at larger airports and airplanes.
So... was this a charter flight picking tourists up in Milan? Only explanation for an empty flight.
An Aero Commander doesn't seat 20. Of course, neither does not a Seneca II or a Piper Cub or a (non existant) Piper Air Commander.
After all this time, we still don't have an accurate aircraft model.
One eyewitness said she saw flames just before the plane went into the building. An 'ear' witness said that she heard an explosion followed by another much louder explosion that shook the building.
So... was this a charter flight picking tourists up in Milan? Only explanation for an empty flight.
A Mr. Ben Ladenzini, who wants to charter a flight for he and some assoiates to fly to Switzerland contacts pilot Mr. O. Geezer. Upon landing at a small airstrip in Switzerland, the plane is greeted by a dark man wearing a heavy overcoat.
Overpowering the 75-year-old pilot, the 'dark man' flies off into infinite martyrdom. To insure maximum effect he detonates his Jihadvest just as the plane contacts the building.
Just playing 'possibilities'
BTW, What the heck was a 75 year old man doing flying a commercial airplane? Is this common over there?