Simplify the following text for a Grade 9 native English-speaking person.
Original: This development came soon after the UVF 's `` Brigade Staff '' ( its Belfast-based leadership ) had stood down the Mid-Ulster brigade , on 2 August 1996 , for the murder of a Catholic taxi driver near Lurgan during Drumcree disturbances .
Simplified: Following the murder of a Catholic taxi driver in Portadown in July 1996 , the Mid-Ulster Brigade of the UVF was expelled .