bbm sbm Having a gun w him during home invasion could have given DDW (potentially more) leverage thana knife alone.Yes, firing it would have made noise, possibly catching attention of neighbors who could call 911.
Houses are close together there, but perhaps noise risk would be reduced by home size? Not like a home invadee (?) would call a perp's bluff or think, "Home invader, go ahead and shoot, neighbors' calls to 911 will have LE in no time." Or silencer?
If DDW had fired gun in home, seems that info would be 'out.' If he had gun but did not fire it, what forensic evd could LE have detected? Likely none, imo. Sadly, no survivors to confirm or dispute.
Just speculation - DDW could have used his (own, borrowed, stolen? hypo) gun to threaten, in addition to menacing w knife.