(1)What (a) progress has been made in the investigation into the (i) murder of a certain person (details furnished) and (ii) vicious attack on her husband and (b) is the docket number(s) of the case(s) opened;
(2) whether any suspects have been arrested to date; if not, why not; if so, what are the relevant details;
(3) whether any (a) suspects and/or (b) witnesses have been interviewed; if not, why not; if so, (i) on what date were they interviewed and (ii) what are the further relevant details;
(4) by what date does he expect the investigation to be finalised?