T.B Joshua a Liar

Is he a liar? 2010 prediction did not happen, why is it that when any major bad thing happens he claims to have predicted it before? Example is that of Dana air crash in Lagos, Boko Haram bombs etc. Why can't he predict bad things when it has not happened and seek for God's intervention and solution to the problems? 

Bottom Line:

Opinions expressed here are merely some popular rumours and not confirmed reports about T.B Joshua, nothing is proved nor certain. So read this with one eye.