A couple of questions:
- what is the base for claiming that's the same "strange plane" each time?
- with that perspective, were the planes really above the building?
There is an International Lagos Airport some 3-4 km East of the Synagogue, so nothing unusual with planes flying low over there. Looks like a pure speculation on their part, especially with the long break (9 min) between the last plane seen over the building and the collapse. Father Joshua may be trying to use that tragedy for attract more attention to himself and his organization.