Reunion for Murder

Patrick and his wife entered the children's bedroom.In the dim glow of the night light, their son was lying on the floor, motionless and moaning.Their daughter was in bed, coughing and choking.Then his wife coughed too. "Patrick, I don't feel well …"He wanted to help her, but his legs and arms felt paralyzed.As she dropped to the floor, he fell next to her.Her eyes were wide open, but lifeless.Patrick and a thousand more died that night, from a deadly nerve agent.But who was responsible for this atrocity?And what is their ultimate objective?